Hello friends, Osiris here, the 7 star Terrorite event for Venusaur is now live in Pokemon Scarlet and Violet. We're going to cover all of the details as well as the best Pokemon to solo this with in your game. So, off the back of Pokemon Day and the Pokemon Presents, we have the announcement of three new Terrorites that are coming to Scarlet and Violet. The first one is going to be Venusaur and it is kicking off as a recording this video on February the 28th and running until the 5th of March. Venusaur will be level 100, will have its inability chlorophyll, double in its speed in the sun and it will have access to earth power, sludge bomb, gigadrain, amnesia, sunny day, growth and petal blizzard. It will of course be a ground terror type, it can never be shiny and it will have that illustrious mightiest mark attached to it. It will have a modest nature of course, no held item and will have that 30 times multiplier to its HP. Of course it is only catchable once per save file, the item drops as usual are the standard things like level up candy, zinx, ground terror shots for this one and ability patches but on top of that there is the caveat of having hermimistica drops with this raid. So, repeating this raid the second time or any time after the first time of doing it, you're going to have a 3% chance every time you defeat this Venusaur of one of the 5 hermimistica dropping with this Venusaur. So a really good raid to take advantage of this one for the time that it is running meaning that we can finally get hermimistica with a 7 star terror raid. So a really good one to take advantage of running like I say from the 28th of February until the 5th of March into next week. Now to access this event in your game you're going to need to make sure that you are connected to the internet then come to your poker portal and then come down to mystery gifts and then check poker portal news. Once you click on this it will update all of your dens on your map and you'll be able to head over to the 7 star raid den which is located here. Now the build that we're going to feature in today's video is going to be the most consistent one that you're going to be able to take in to solo this within your game very easily. We'll jump into the raid and show you exactly how it works in a minute but it is going to be four chest nodes. So the grass and fighting type first partner Pokemon will have the grass terror typing will have the held item of the shell bell and will be level 100 as always the build will be down in the description if you want to take a closer look at the details after the video. The move set that we've got is very straightforward is going to be sword stance that is a TM spiky shield it is a learn move so you'll be able to get that fine just leveling up and then seed bomb as well as another move that you'll have access to. The important thing for this chest note build is the ability bullet proof will give you an immunity to bomb type attack so sludge bomb being one of them is a key reason why the chest note works in this raid so make sure you do have that hidden ability it will require an ability patch and the EV spread is going to be 252 in attack and then 252 EVs in special defense with the rest put into that HP stat so the four remaining there and an adamant nature so that is the chest note build all in all and we will jump into the raid now and I'll show you how easy it can be for you to run through and farm these Herbomistikas over the weekend as well as grab the Venusaur from this event. So when you first come into the raid that turns zero we're going to see Venusaur do a multitude of things obviously we know turn zero normally Pokemon do set up here but it is going to get the sunny day up that's important to note that the growth under sunny day is going to be a plus two to special attack and it's attacks that rather than that plus one so we'll see the sunny day come out first turn here from the Venusaur then it is going to go for a broth which is going to put it a plus two attack and special attack so it's going to be hitting a lot harder and then third it is going to fire off a petal blizzard as well just to put the ice on the cake but what we're going to do and not going to panic in this situation just going to lock in with our seed bomb here because we're chasing that tracelization we want to get to be able to tracelize as soon as possible we are going to see the Venusaur go for an amnesia here which is fine if you've got an Arbalivure as well it kind of can help you but it can go against you as well because the giga drains from the Venusaur it's going to be so boosted up by the end of this we'll be hitting a lot harder so kind of swings and roundabouts there second turn we just go for that seed bomb once again you see this ludge bomb coming out here it is activating that bulletproof ability that we've got access to giving us the immunity so really important for this chest node one of the big selling points about why this is a really good option going into this raid turn three again we'll just lock in with another seed bomb because like I say we want to get to the point where we can tracelize as quick as possible now after this turn three it's likely going to nullify the stats and abilities on our side of the field and then set up its shields may vary maybe turn two and maybe turn four depending on the damage of the Venusaur that you've done but like you can see here nullifies the stats changes and the abilities on our side of the field so this is the turn this is a really important turn where you need to spike your shield here so it is going to set up the shield as well on its end but we need to spike your shield because our ability is nullified this turn so we need to avoid getting a sludge bomb because if it goes for a sludge bomb now it's going to knock us out and we haven't got the bulletproof to protect us so that is one big thing to keep in mind we do see this sludge bomber is into the spiky shield and that's the only time we're really going to ever need that move throughout this raid so the next turn we are going to go for the tracelization and we are going to go for a sword stance while we're healthy we're going to take the opportunity to try and get a sword stance set up and boost our attacks that ideally we want to be on plus six so three sword stances by the claws of this game but you can get through this part with just one sword stance if you're kind of low health you want to make sure that you are seed bombing to keep yourself topped up with that shell bell held item but if you get a free turn like this where it goes for the sludge bomb again then you're going to be in a good place to go for another sword stance the next turn after you have tracelized so we're going to be able to do that next turn and then launch off the seed bombs after that so you just need to keep a gauge on what your health is like at this situation of the raid because this giga drains are still doing a lot of damage right taking us down to nearly half health so we need to make sure that we are doing some big damage the next turn to kind of restore that health so we aren't getting knocked out when we are tracelized that's the big important things in this raid so say we can just look in after we've got those two sword stances up with plus four attack right now giga drain going to come out again do some decent damage take us down to a bit of an iffy range so the seed bomb is going to be a very valuable to us and the whole thing that we're doing now is just clicking seed bomb trying to get rid of that shield it is going to be a bit of a grind here because the shield is so thick but once the shields gone you're going to be in a such a good position to just close this up very quickly so this is what I mean about the chest note the only thing you have to worry about is if it does fire off those earth powers it has the chance to lower your special defense and that can really go against you and make the venus or hit even harder than it is right now so you have to watch out for that if you do get bad rng at times that can be something that does go against you but like I say once we've got that two swords answers on a belt we can just fire these seed bombs off pretty safely here just recovering our health keeping us in that healthy position and just chipping away at that shield like I say once the shield is gone we're going to be in a really good position to close this out and you can see the raid timer as well as pretty healthy at this stage for the giga drain coming out from the venus also that's what it's opting for at the moment none of the con go for the sludge bombs but not opting for the earth powers which we like to see because the earth powers do kind of have that caveat of that lowering the special defense chance every time so one more seed bomb after this and we should be able to break this the shield and will be in that position to kind of close the game up so like I say we've only got two sword stances off if you're in that position where you can get three sword stances off in this position and you're going to be in such a stronger place when that shield is broke there's the earth power coming out thankfully doesn't lower a special defense so that's really good to see and this seed bomb should break the shield and that's what we like to see so that's excellent for us it should restore nice chunk of health as well along the way and like I say the chest always pretty consistent if you just follow what we've done in this guide so far you're going to have no trouble of running through it pretty quickly over the weekend and I feel like this is the quickest and most consistent way to run through the venus also we'll go for a sword stance here seed bomb here sorry be nice to go for a sword stance of course but we're plus four and you can see it's still chunking away if we're in a position where we can get a sword stance off like this next turn if we can get a sword stance off then we should go for it here we should go for it get ourselves to plus six and then it's going to probably put the venus or in range now we do get very fortunate here the venus or is really parallelized but even with you know an earth power giga drain at this range it's only going to take us to a maximum of just above 50% health so we'll be able to take the attacks and as you can see it goes for a sludge bomb so activating that bulletproof now a plus six attack only nullifies your attacks your stats wants through the battle so we're not in any danger here as we see the earth power come out you can see we can take at least it would take three of those to knock us out pending a critical hit of course but I'll be able to launch these seed bombs and one more after this will be enough to wrap up the venus or and that's as easy as that friends there are just those key moments in the battle where you're just going to have to pay attention use a spiky shield when the stats are nullified and then just kind of gauge your health throughout and sword stance when you can feel comfortable to and then just fire off a seed bombs for the rest of it after you have to rest lies and you're going to be able to close this up pretty quickly should be about six seven minutes in total to run through the venus or info farming hermitsika in particular that's actually quite good probably the best way we've got at the moment so make sure you all want to stock up on hermitsika of course it's not a guaranteed chance every time you do it but it gives you very good odds of being able to farm for them when you're doing this raid over and over and over again over the weekend well it's running there you go we've got a salty hermitsika as a little bonus there as an additional time through with this venus or after you've caught the venus or and you've run through it once and you want to respawn the den because you're going to get one appearing on your map at a time you can use this method just hit your home menu come down into your system settings then down into system then into date and time make sure you'll synchronize clock by the internet is set to off then into the date and time options just toggle through with a change anything here then come back into the game and then you'll see everything on your map will despawn and respawn and you'll be able to locate the seven star turret event then again on your map head over to it and repeat the process that we've just repeat so that is everything for today's video friends I hope you have a lot of fun with this brand new seven star turret that is in celebration of pokemon day of course happy pokemon day to all of you but more importantly happy hermitsika hunting I hope you have a lot of fun with this if you've been using any other builds to success to run through the venus all this weekend do leave them in the comment section below to help the community on a whole but I hope the build that we feature in today's video is super helpful and you have a lot of success with it thank you so much for tuning in if you found it useful do drop a like do subscribe to the channel to stay up to date with all of our pokemon content and I'll see all in another video very soon so until then friends take care of yourselves and bye bye


But I think it's important to remember that there's a lot of different ways to engage with a given paradigm. So for instance, in object-oriented programming, there's the untyped object styles. There's C++, there's Java, there's small talk. There's all of these different languages that give a different perspective on what it means to be object-oriented. And the same thing is true in functional programming is there are many, many different people inspired by the idea of a functional programming paradigm. And it's not a crisp definition of what is functional programming. There's a lot of different attitudes and ideas on what it means. And so you explore and play around with a lot of different languages and ways of looking at functional programming. You're like, you could do scheme, you can do closure, you can do elixir, you can do Haskell, you can go in through all of these other approaches. You can go very high theory or you can get to very, very practical cases like looking at how lambdas and other things are used in C++.  And maybe it turns out that scheme or one of these other languages is a lot more accessible to you. And if it is more accessible, then you'll pick up the ideas a little bit faster and then you can play with one of the others.  The big value you're going to get first is trying to understand the aesthetic. Understand the experience and the change in how you engage with problems that can come with a functional paradigm and how that is a tool of thought for your work. And then move on from there and then you'll have skills to be ready to maybe tackle that thing that was confusing to you before. And I actually did that. Scheme as a language helped me to become a better C programmer. Cuz I had tried to learn C before, and I just couldn't figure it out. But when I started practicing with scheme, suddenly little ideas percolated over, I started understanding the use. And then I could go back to C and I was like, okay, I've got it. So maybe you just have to flip around a little bit first.


We're getting welcome and we'll proceed right along. Greg Vagari will address the letter of delegation and what's the matter? I know quite a few people in the room and I know that there's a lot of you thinking that acting for a supervisor behind my name is a scary thing. I agree. It's a typo. It's a typo. Without any further ado, maybe you've been on the payette. Welcome. Here we are again and for those that haven't been here welcome. This letter of delegation is to Paul Broil's incident commander and it's to follow the situation, whoops, a wildfire situation analysis alternative bay which has changed as of your showing up here and we'll get into that a little bit. This delegation this delegation authority is to make sure that you ensure public and personal safety to follow the 10-18 situations, use lookouts, communications, that's LCS and I'm sure it'll be in your safety and IEPs. I look forward to that. Provide protection of all structures especially those to Fort Hall Hill.  Cost efficiency is important but this is a full suppression action so whatever we need to do and do it cost efficiently but our goal is to get this fire out. The fire is located in critical bull shroud habitat. You'll have some resource advisors assigned to the team and they'll introduce themselves and make themselves known to you. They'll be working with you throughout the incident. I expect a high level of conduct, ethical conduct from the people that you will supervise. We'll get into a letter that we have posted in this plan. I think it's a little too soon to talk about rehab. You could read that portion in there when we get done or closer. There'll be some rehab guidance that you can follow. I mentioned working with the resource advisors. I think we have two really good resource advisors on this district and and I think they'll help you along and we'll do do the right thing. We want you to maintain a regular communication. This is going to be a very highly visible incident so the communication skills your team exhibits are going to be very important and needed. If you need more help, fire it up in the fire information and I'm sure you'll do find there. Mary Farmsworth is the district ranger at council. Any questions or changes to the what's up? We'll be going through her. Like I said, Mike McGee and Alan Dolman, we already pointed them out as your resource advisor. Carol Feider will be your incident business advisor and she'll be answering your questions on financial problems and myself acting forest fire staff. Any questions, Paul? Okay. The next thing I'd like to cover is conduct of your folks on the assignment. This is very important. All the employees, supervisors and management officials share a responsibility for ensuring that the high standards of conduct are going to be carried out throughout this incident. Mutual respect. We want mutual respect. All our interactions with people on the on the fire, the community. You know, we've had problems in the past and I'm sure you folks won't won't condone or allow any illegal drugs or vandalism such and if you do have any problems of this kind we would more than gladly help you solve any of those problems. Next on the agenda, Mary's going to talk about the WUSA. Well, I will be briefed as the wildland fire situation analysis has been exceeded and so we'll be doing another one this evening. So I won't get in in detail to the alternatives because we'll be needing to develop new ones. So bear with me on that one. What I'm going to do here as we go through the WUSA, I'll have Sam, in his phase of things, talk about the fire situation, the fire weather, the current conditions. So I won't go into that. So I'd like to spend my time talking about the objectives and I do not believe those to be changing very much when we review the WUSA and amend it or develop a new one. So I'll call your attention to a few things. The safety of the firefighters and the public is where it's at. That is our number one priority and it should remain throughout the incident. It is a big deal if you need to make sure we're following policy and doing the right thing for our folks. That includes the public and we have some challenges on this fire with Highway 95 going through. There's a tremendous number of lucky lose. We have folks that are evacuating or starting to do that so we have U-Hauls. We have a traffic diversion from Highway 95 on a gravel road and it's marginally two-way, shake-feel, not enough destiny with those sorts of things that we need to probably tackle pretty darn quick in working with the sheriff and the county folks. So that's going to be something that you're going to need to pay attention to and our objective is to make that a safe operation so it's going to take your attention. Regarding safety, the conditions as I'm sure you guys have kind of been picking up on is we're in a weather condition here that's not conducive to controlling this fire. Sam will go into the weather event here. We'll be able to provide you some weather but bottom line is this is not a good trend. We're expecting some winds here in the future. Next couple days is similar or if not in excess of what we're currently getting. So big heads up this is not nothing setting up particularly well for us in the weather department and the fuels are just pretty darn dry. Concerned about the traveling to and from the fire, you know looking who's are looking up and the firefighters are getting kind of tired so pay attention to expect. Pretty good adherence there to the two-to-one rest guidelines. We need to be adhering to that and take care of folks and certainly the driving once again. Aviation safety, we're on the edge of a type 1 show here. We have Phil, I don't see Hugh there. It's going to be helping us out and with that I think we're very solid and so I'll be kind of looking at that but it is a very large air show. We have huge power lines. They are the primary lines into McCall from Hell's Canyon. Power drove past them coming up. They're kind of low-slung and if we go into looking at a worst-case sort of expanded alternative this next go around those are going to be something we'll be dealing with but aviation certainly should know about those and other power lines. Concerned about the public safety so we're looking at the folks that are moving through just as a travel line on Highway 95 so safety is going to be a big deal. We have evacuated some folks. We have an area closure in place and we have maps and I believe the description is on the table. Rob has those descriptions of the area closure. We've taken some action, made sure folks are out of there but we will need to ensure that it's posted at the intersections to maintain the closure especially as this thing that's a little bigger. Homeowners we have a lot of structures and we have a lot of folks that are really wanting to know about their houses and that sort of thing so information-wise we'll need to really take care of those folks make sure they're briefed but also deal with the potential hazards on the line and on the fire and ensure we're taking care of those folks. Economics certainly we have structures ahead of the fire as well as behind the fire now which we had success the initial attack folks really worked hard and we were able to protect a lot of things yesterday very fortunate so we do have structures going on here up the canyon up Highway 95 and we have some wooden trestles on the Weezer River Trail. I'd like to take care of those if we can so some improvements there. Timber, we have a sold timber sale in front of the fire and if we go into an expanded situation that will be in peril and so we'll be aware of that and we'll be able to provide you with some of that information. Teeny species we mentioned the critical bull trout got some great resource advisors not just good and they'll be able to help you out so really like the ops folks to be working close to them so we can make things work for everybody and take care of the bull trout that's their biggest species. The retardant into the East Forkville and Weezer River is going to be an issue we want to be sensitive on that but at the same time being super restrictive we're going to put the fire out. So if you could work with Mike Nagini he'll help you be talking about retardant in the river source of things. We do have some sensitive plants they're past their life cycle but they're existing in the scablands and so if we're doing those are what we need to lift the blade somewhat sensitive to those plants as much as possible. We have some wildlife management indicator species some mucoshock nests I believe Alan will work with you identifying where those are see what we can do just to be mindful of them and certainly water with the fish we have some water concerns regarding fire retardant chemicals in the waterways. Social impacts encourage you highly to use local resources in town of council new meadows, Cambridge we have a lot of good things in those towns to be utilized and so anything you can do there would really help the community we're already doing that with our initial attacks on some things and been real successful in achieving some community support in the way of some work. This is going to be a high visibility fire from the standpoint of the town and pass revised with 95 main travel corridor. I would like to ensure that we maintain top-notch community chats we've already instigated a daily community town meeting there at the district office so I'd like to talk to you folks about that and ensure that we continue on with that as well as posting things from the town. So those are some objectives things to be aware of and so I believe those will carry through in the next iteration of the situation analysis. I apologize for having already exceeded it but sometimes those sorts of things happen most tidy as we go look forward to an excellent working relationship with the team. I'm yours and at your disposal and I'll be around a lot. We caught the initial spot up it was about 100 by 100 but before they got around to the complete head that it spotted out from light fuels fuel model one two graphs typed into to fuel model nine with a little bit of brush underneath ponderosa pine. Once it got into that the wind of course got the spot there and the wind continued to push it and we had air resources on it pretty darn quick. So we just weren't successful once it got into that fuel model and the low rh is you know bordering on single digit and temperatures at roughly 90 degrees so same thing happened again today we were we were doing well until about two two thirty three o'clock again the winds picked up and it spotted again across the east fork we picked up the spot this morning that spotted about a quarter mile from the initial run so there is some mid-range spotting obviously short-range spotting got us into the predicament yesterday and imagine that will continue to happen. Looking at the the weather I was on the fire at two thirty and had this briefing already for you and we got a report from you know look out on the Weiser district Sturgill Peak she called in winds at 25 just to 30 and they weren't predicted to be quite that strong today they were predicted to be 15 so I think you got predicted winds in your forecast for tomorrow for 20 you might amp that up five or ten we typically get winds in the council valley there when we get in this weather push between the low and the dry air mass coming off the four corners and you'll see that things start to move around 11 o'clock the inversion held this morning till about 10 30 11 o'clock and then you can just you know it lifted real quickly and the heating of the day and we got into those burn conditions again so that's kind of hit the nutshell there feels wise Mary mentioned the the Gaylord North Timber sale which is out in front also across east fork is is a sale that was sold in 96 but we had a float event it's called the fourth colt sale it's all right from fourth colt's first colt's I'm pretty familiar walk that hiked it there's a lot of fuel in there a lot of a lot of scents per acre pineal matt it's like walking on a mattress you know six eight inches deep for north stringers that are pretty well stressed susceptible to good fire behavior particularly in after 10 11 o'clock I'm a little bit front and short here because we've been trying to chase this thing I thought we had it it was one structure everybody is doing the best they can we found ourselves as most folks aren't in a situation just short and deep and short equipment so I'm sure you'll find yourself kind of in that mode the next day or two anyway that's all I got miss that's miss good questions how far are you from the car lines right now um the last report was there was a 40-acre spot there around first and second goals so we're still a couple miles from there a little maybe a little more up there we had a fire in 2000 I could give you a little more on the maybe the importance of that power line in 2000 we had in a compromising situation and we were working with ideal power and that uh as a main source of power from mccall peak season like it is here this time of year it would have a big effect if that would go down for any period of time which would in turn affect operations for you in some all your stuff is a lot of it's coming through my car worst-case scenario when going to the north how far that thing can run realizing nobody can dig fire but you want to answer that right um worst-case scenario it could go as far as a blue bunch good okay I'll walk through the checklist with you folks and it falls right along in your handout you've received there basically I think Sam carried the fire situation with him as far as the size now it's probably up around a thousand acres when that range things started yesterday and the cause is still under investigation this is what happened out there basically fuels are off and going I think you're on top of that the initial tack instant commander was jill brinkley he's available for any information you may need current resource in the fire kind of catching here but we've got about three and a half crews these are type ones and about 10 to 12 inches this time and on order we're trying to get your crew strength up to a dozen crews we've got six-tack one six-tack two and most of those should be coming in today we've got delivery times looking sometime this evening John get to that so that kind of matches what we've got there and I think you've got a chance to interface with the distance go from there uh trainees we do have one the trainee of I know you've brought quite a contingent with you for that we do have one from the forest it would be a strike team crew that we'd like time with if at all possible or engine so we can work through that area and on the same note yeah it would be rock dines we can make him available as far as uh any local personnel we do have some of our overhead and whatever title about that at your convenience we would like to get those three back up to their normal jobs our initial tack is getting tapped down pretty low at this time so our special control situations I think you can see what's going on out there we've got extreme burning conditions our Haines index and ten to five and six right now and the big thing's been the erratic winds the last few days so it looks like there's no particular breaking that in sight given with the really unfair weather prediction it looks like it's going to be interesting here for a little bit what's threatened again Mary touched on that and the rest of the staff that basically do have homes involved the power line like we mentioned as well as fish habitat and stuff the thing in the branches there and resource advisors as mentioned will be Mike McGee and Alan Dolan okay these folks will work directly with you any questions feel free to lean on those folks as far as the case that will be the Adams County Fairgrounds and Council I think Johnny may have to go down there today and look that over okay great and as far as maximum capacity probably upwards of 600 or more so it's pretty wide open which we get into there communications uh in the process of getting that set up and Harold have you got anything moving on that at this point well what we got right now is uh there's a bit of your command and meter put up I think was probably useful enough right now we put it right work the problem where the start is actually also become your leader later give you some coverage now to start your fire and we work to try to get some linking equipment up here because it's going to expand for you to have to build and we have some other situation with the elevates that will work with you and get that straight down to I think your telephone's are all in or dang close to it I don't know if you get to fight or 15 but they're both good and uh other than maybe tomorrow trying to work gets itself on both way there because all the cell phones come up here don't work down there and I think that's probably what I'm about now so coming right along as far as location I think most of you've seen it probably even driven past it but you're about six miles north of council on highway 95 and approximately 20 miles south of new mothers right down through that country through there as far as the fire situation around us uh today's been an interesting day and I think everything around us says pretty much very very active our north fork of the Whittaker we've had the Brenner's team on for the last week basically the northeast corner of it's very active you can probably see the platoon coming up on it we still have two crews remaining up there actually one right now so kind of backed off that and had a corner get loose on us as you walked in here you probably saw another smoke off to the southwest that's the south fork fire in the Boise and that just developed today and understand they are mobilizing a type one team on that one and similar situations are going on the San Michales and throughout really the whole area here so we're not alone it's turning into a pretty widespread situation here within of course the deep grid fire over in the booktel Idaho Falls area is still active that too is getting quite a bit of attention they too had structures involved on that one and throughout the Great Basin Utah has a couple of problem fires down there we do have the Matt group functioning at both the Great Basin level and national they're preparing levels four right now in both criteria and so any competition resources will be coordinated to those students there okay as soon as initial attack for the team we would like you to handle any new starts in high A within the parameters of your TFR that's five miles already it's a five by five and he's got that all mapped out for you should we'll see that pretty well that's something we can work with you on on that deal okay as far as the equipment available locally in question ask John's very familiar with the area here and we do have a lot of contact equipment those are water tenders that type of thing also the World Fire Department answers this type of thing we try to work out some agreements with so just time with the logistics and expand it and then give you a hand that stuff you mentioned the TFR is in place and he's got a good handle on all that line up on that deal as far as restrictions on any type of equipment they're asking for no user those are used excuse me in the riparian areas density that country no blight down walking across scaps basically any those are used this type of thing work it directly with your resource advisors coordinate with them and they'll help you get lined out on that also we'd like you to watch the retardant use the name of watersheds that be the leisure river as well as the drainage is there at the bench creek and the fourth bilbs this type of thing and one of your supplemental handouts here does deal with the use of retardant forms in their areas so it's in a good direction on that area okay as far as ground traffic as far as coordinating out we'll tie back through Adams County Sheriff for that support highway traffic or traffic control is needed no matter and I think I mentioned your incident business advisor will be Carol Fyder here and Patsy I think she'll be helping out in that little bit okay so we'll be working very closely with you liaison some other agencies currently we're slowly involved it doesn't involve private land where it started but it were the one agency involved at this time okay any co-op agreements we do have co-op agreements on the helicopter spots we're using in two or three places like that agreement has been signed with the fairgrounds down there and as far as that like say the fire did start on the private ground and I believe everything else is covered and those are available to you John if you need them the socio-political implications uh really the biggest thing was the loss of the you know structure threats down there to the homes the power line logging fish aquatics and stuff of things so the values are there okay as far as fire information officer interface word heart wig is the forest information officer and here in your handout here's his information also later in the packet is a sheet kind of addressing information set up here that will probably be being beefed up here as we get more active around the area any restrictions as far as dealing with the media flying we just request you work through forest dispatch here we do utilize the flight authorization forms and set those up for you and just log in on that through the media here as far as other items uh basically we do hold a daily briefing in this facility here daily at four o'clock sixteen hundred hours we'd like to request that either follow yourself or one of your command staff attend that and basically it's the one where we can't touch base with all the different logistics functions to support people kind of coordinate what's going on and it does involve we've got multiple instance we can kind of set us up beside and work out what's going on it works well okay as far as the role of payout logistics dean martins over here and it's down here it didn't seem oh Dan's done it they kind of coordinate that and also your plan's chief is our logistics is very familiar with it he helps us out considerably but we do have a very large organization that travels a lot of transportation through the warehouse all the cost no work so i think you'll find it very helpful to you okay as noted in your delegation transition time will be tomorrow morning at over six hundred hours and as far as key contacts again i won't go through verbatim the rest of this package you've got lists back here that do have the key contacts lists first phone numbers radio frequencies for the forest there's a copy of the hotline protein that we will use during the closeout also the instant team evaluation and that's the same tech sheet that's in your red book medevac plan we do have a couple concerns here gary you might want to address that from the force dispatch yeah the only thing we request on any medivacs fire that any aerial medivacs can dispatch gets involved in that notified we've had trouble before the medical unit are doing something and we get wind of something and they're both losing it the medical unit could just contact us on any aerial medivacs and also there's one type of in the plan there the council does not have a hospital anymore they have a medical clinic in there but if you want to gary i also have updated stuff in the financial upvotes on for medical stuff not for your fly med medivacs just okay not attempt to overstep your medically in but please coordinate that through dispatch okay as far as the information officer briefing there is appendix here they address that appendix B there's also a little statement on our recycling capabilities again i won't go through these but they're there for your reading and then attached is we got separate documents here i guess i can give these to you but basically their appendices basically D E F and H and what they do address is there in your handout it's basically suppression rehab guidelines the suppression guidelines related to patient critical habitat they'll deliver the foam and return and then the spill prevention and conservation plan and there's we didn't make copies for each packet and then just save paper but there's 15 copies there you can place where they're needed most so that's kind of the key items on our checklist any questions i can answer at this time okay i'll turn it over to Greg didn't avoid but i just welcome new commissioners and done emergency management i apologize for that i'm glad to have you here i'm sure you can see this this hall fire is is something else and i have all the faith in the world that you folks will manage the incident appropriately as professionals paul when we get done we can go inside this delegation the only thing i i hesitate to keep bringing up safety and the only safety message i really want to leave you with is doing the job the right way is safety at its best okay and you know how to do that and please watch yourselves watch each other uh if you see somebody who's who's fading and not doing the job the right way bring it through attention okay that's about all i have are there any questions notice that we're diverting traffic off the highway 95 right now right one to a county road right how's the county every good to take care of that road that's just uh carol yeah we're talking about how we're going to get her doing that to your finance chief and i just she brought it up okay they're talking about very good did i have that gentleman's name uh don't work don't right there's presently one county water truck on their left now but he's having trouble keeping up we're gonna have to safely get another truck on there well we i'm sure we have ordered and that truck's doing what water roads are splint watering the watering the road the the going through the window okay the bypass but it's still real dusty can't keep up under policy and i sure understand the policy but i'm a little concerned about the corridor and a power line by using uh caps up there i just want to make it the philosophy should be to be able to get up there and build big firebreak just truth in the matter is that's a corridor in itself it's already been mitigated to idle power it's been opened up it's been utilized i'm concerned very much concerned that the fire reaches that that power line is going to cause some economic disasters in this whole area and if that's you know that's a big base 138 line and you're not going to put it back together and despite it's going to take some time to do that so i'm real concerned that the policy is policy but i would hope that at some point in time common sense will drive where this needs to go let me let me answer it like this um the fire behavior we're experiencing if we took you put four five or six blade wide and open that line up would still not mitigate the fact it would come across we have done we have spent an enormous amount of money and air support to stop this fire where it is and once it gets up and running through that timber with the slope the communities demand uh if i were to tell you we can do eight or ten and knock every piece of standard timber when it's spotting a quarter to a half mile away um we're concerned too we're very concerned and we know what you're talking about um we've been there before and we know what the fire behavior is going to do we'll do everything we possibly can to stop the fire our desire is the same as yours it would just be it would just be too overwhelming a task to take and try to devoid the the fuels with cats or even cutting them and still end up with the same situation given one springer timber going up to the right and we're not taking it likely we're not taking it we're putting a lot after this fire there's one thing else that Mike helps me out with is the gradient all the way up here uh they've ordered four dozers i think they're putting two on the right and that was several hours ago so those are going to be in camp yeah we will try to we'll try to get around but if you're if you're thinking it's you got in front of it and several questions on yet it probably is in here but i didn't see it right off the vehicle about press releases handling information do you want that to be handled boy you're here releaseers here i need to hook up with your information officer he's driving up here right now jeff gill house okay so we'll tighten it we've already sent release out and a lot of community outreach already today okay so we've got a good plan of place for that so we'll just keep that in place then and the releases will come from from here rather than the insta well it'll be based out of uh council range okay and that way they can do community outreach okay but i'll work with your information officer now any other questions uh reporting in you want a daily report in in the morning contact the university or to of course i'll be seeing mary i'm sure and mail out mary you'll see your dad's you're here right yeah go to the other way around either way go through here okay she'll be you'll be at every every bridge yeah we're going to talk about that when we break yeah we'll go to iba about the county commissioner so obviously we'll be all here in a little bit trainees you've only authenticated one at this time you've got more we're more than happy to take it i probably everybody's out fighting fire so it's going to hard to come up with a training if we do we'll let you know fall just okay okay section chiefs anything uh specifically the one covered the tune you didn't put on i'll be working with carol really starting to tell us there's no sense anybody else do you guys have a contact arrival power or a way we can get in touch with a local person i'm sure there is down in council okay we'll need that well we'll need that and then uh we need resources information too so we can walk in on accurate information on that so these new gentlemen are just waiting with baited breath why you don't have the resources that we ordered well the combination of what's here and everything means resources on fire and what's been okay i'm sorry yeah if uh we'll get you there's type 3 ic out there should have some logs filled up to some two levels and what's uh what's on the part one question is talking to karen earlier and i understand gis support is available yes correct and the ever popular copy is it down there the diagrams yet aren't you okay are we able to get into the ranger district use your coffee tonight yeah you should have your coffee around between eight and ten o'clock tonight because when you should have your copies and fax machines we can work at the earlier more welcome to anything we can provide you out of district doctor thank you you're welcome uh this power line issue concerns me greatly if it starts running of that power line i think we need to have a contingency plan in place particularly for my standpoint how much effort you want to put in putting aircraft around the power lines and uh i think that's probably a pretty high priority for both the team ball and also for the good point we love the folks here too so okay get that going yep that would be good with some trigger points we need trigger points and that's what conversation about no power we need to see what needs to be done in relative to that good good anybody else just before our fight the fire departments as those contacts get away we just need to make sure that they're dialed in with our group as far as the contacts and our heuristics on the briefing and that stuff because sometimes they get dropped through the fraction right transfer and information right i'm sure when you get down is going down tonight if you can type what type your ices get those contacts and and bring them in okay anybody else i have a phone list here i'll just leave them on the table up there and anybody that would like one they have the expanded discharge and other good numbers uh we'd like to add your icp numbers to this list so soon as you get those if you let us know and then any changes or corrections to the list you can just call our front desk here and we'll we'll put out a new list every day and we'll be handed out at the 1600 briefing i'll also have copies of the resource orders for the resource unit leader and john and i'll just give them to you after that i mean thank you one more thing that's appropriate to this type of briefing and it's on finance for aircraft uh we have uh approximately until i get with gary i think 16 helicopters assigned and they are assigned to hall subject to a telecom we had with bob dot or mike dudley and bob q and but i want to assure both iba and our finance chief that those will also be used on other fires and that the aviation unit will split out everything to fires down to the tenth of a flight hour and that is to cover us very very well in any uh post fire review by finance okay i just wanted to mention that i have a cost unit leader in aviation so all finance folks are smiling there i know i scream bar spot well i made a commemorial smile if you see anyone else do we have a bunch of apps to the apps the handouts of these folks maybe district maps same i can set job available for the is where we have to look at the district okay uh thank you that's an excellent briefing you got most of the questions answered and i know that uh what we need to do now is to break out with our counterparts for the next old half hour so we'll make it 1930 we'll reconvene with the team here to do the wrap final wrap up and get our plans for the for the next operational period in place uh so at this point let's just go ahead and break up with the counterparts be back here in about half an hour uh i know the lands water visit with gis folks for instance uh fire behavior with with uh dude probably and so on thank you very much


My talk, when I submitted it, it was called Life and Death on Fedora Atomic Workstation. And since then, things have changed and got renamed. And now it's called Life and Death on Fedora Silver Blue. So I decided that I'd spend the first few minutes of this talk talking a little bit about the changes that led to that and why it's Silver Blue now. And then I'll switch over to give some impressions of how daily life on such a system actually is. So let's dive right in here. This works in a different direction. So the first section is going to be about the renaming and rebranding. And these are the highlights for that section. If you take away just these three points, then you can sit back and wait for the entertaining part to second off. But I want to talk a little bit about the fact that Silver Blue really is just Fedora. And I'm stressing that because when we first started talking about Silver Blue, there was some concerns that, oh, we're trying to do a new distro outside Fedora. It's going to be a competitor. And why are we doing that? So that is not the case. Silver Blue really is just Fedora. It's the continuation of something that used to be called Fedora Atomic Workstation, which has existed since roughly Fedora 25. And it's built from Fedora RPMs, just like any other Fedora edition is. It's just that we compose those RPMs on the server side and deliver the content as an OSTree image, an OSTree repository, similar to what Atomic host does. And we install applications via Flatpak. Yes. But why did we decide that we need to rename it? So I don't know about you, but to me, Workstation sounds a little old fashioned. But when I hear the name Workstation, like a computer comes to mind that looks maybe like this, like a spark station from the 90s. So that's not necessarily the impression we want to give people. So we want to have a name that sounds fresh and interesting. And the other half of the name Atomic Workstation also is not so cool for marketing purposes. I mean, we in the know, we text save users maybe nowhere else comes from and find it okay. But for the rest of the population, the closest thing that comes to mind is probably nuclear waste. And since we want to reach out beyond this audience here in this room, we decided that it would be better to avoid that. So, yes, we decided we need not just a new name, but also a new logo, a new website, and new communication channels. The logo that we came up is the thing you can see here. If you squint a little, you can maybe see that this could be like a leaf. The original name that we were going for was going to be silver leaf. It didn't work out for some reason. So, we had to go with silver-blue in the end, but the logo still kind of has this leaky feeling to it, which I think is nice. You can maybe think of it as a new leaf on the Fedora tree or something like that. And down here you can see the link to the website that we set up, and we have a Twitter handle by that same name. And as I said, we also wanted to try something new for communication instead of a mailing list that may be the most comfortable for us, or thoughts. We decided to set up a web forum using this course. The link to that is down there. Yeah, what I should also say is that when we started setting this up, we did things pretty quickly, so we got our own domain there, teamsyverblue.org, and we're now in the process of moving this over to Fedora domains, so some of the URLs that you see here might change over time. For instance, the discourse server has already moved over to the Fedora side because we want to use this course a little more widely in the Fedora context in the future. Right, so Fedora Atomic Workstation, as I said, has existed for a while since Fedora 25, and it was kind of undercover. Not many people knew about it. A few of us were trying it on and off, and it lived off to the side under the umbrella of Project Atomic next to Atomic Host, and a bunch of the other new container tools that we are hosting there. And yeah, so when we decided this year at DevCon from February that we were going to try and push Atomic Workstation and make it something that's more public and more visible and ready for primetime for a wider audience, we did not know yet that Red Hat was going to acquire CoreOS. That was the surprise that we all learned of an on-the-flight home from DevCon. So it has taken a while, but by now it's become clear that Atomic Host is going to be merged with container Linux that we acquired that way and it's going to become Fedora CoreOS. And the Atomic Workstation is becoming silver-blue, as I already said, and the other projects that are currently hosted under Project Atomic are going to find a new home and a new place for container tools. And Project Atomic is basically going away in the medium future. In a way, it was very lucky for us that we already had embarked on this rebranding effort just in time to be surprised by this. Right, so much for names and brands and now I'll switch to the actual topic of my talk and I want to give a little bit of an impression of how daily life is on an Atomic Workstation, or silver-blue system. I started, I reinstalled my system after DevCon and forced myself at plate with Atomic Workstation before like in the VM, installed it off to the side. You play around with it for 10 minutes and then you go back to your actual system and do your work, which kind of doesn't really force you to like figure out how things work on this kind of system. So I decided that I'd have to actually reinstall my system and force myself to use it day in, day out. And what I'm showing you next is basically the experience I had doing that. So the first impressions are, I just show a few commands that you could run on your system to see how it feels. So if you run DNF installed, and I can install some extra package, which seems like the most normal thing to do in a fedora system, you get total DNF and I'm not found, that's pretty shocking. So you're gonna get anything done on a system that you cannot install a package. Now maybe you might look around a little further and you look for slash user, how it's mounted and you'll see, oh, it's read-only. Then that means that DNF wouldn't have done you much good anyway. But if you never sign that, this is really a system that's not like the other fedora systems. The third command I put down here is like calling RPM. RPM at least is installed. You can run RPM-Q-Connel and it'll tell you well, this is the kernel that you have. So that's at least a little bit of a good sign. There's still an RPM database somewhere on the system and it can actually tell you what's installed there. So there's still some familiarity left. Yeah, moving on, basically DNF is not there so you have to learn to work again and figure out how you can get things done on a system like this. The important command to know here is RPMOS tree, which is the tool that we are using inherited from Atomichost to update the system and install from an OS tree repository.  The one that I show here up top is RPMOS tree status which basically gives you a bunch of output that tells you which image is installed in your system currently, which version it is, what the exact commit is. I abbreviated this a little bit if you run it, you'll see there's more coming. It'll tell you about the other images that are also in your system because RPMOS tree actually keeps more than one system at a time and lets you switch between them. As I said, RPMOS tree, the second command down here, RPMOS tree upgrade is what you run to pull down the latest, basically the equivalent of DNF update. Yes, what did I want to say about that? Yeah, I didn't have an upgrade available here. Otherwise it would tell me a lot more about what's actually getting installed. And I should say I'm running these commands and not as root because RPMOS tree has a system demon that runs in the background and if it needs privileges to do things, the command line tool will just talk to the demon and get things done that way so you don't need to run it as root. Yeah, at this point I'll have a brief intermission about talking about why we may want to use RPMOS tree in this way. The basic idea is that this is an image based system so I'm installing an image which is identified as a unit not individual packages that get combined on my system and then a bunch of postscripts get run in undefined order and the outcome is not really clear so this is an image based system where I pull an image that is still identified by this commit checksum and everybody who does the same will get exactly the same bits on his system which is kind of very nice for reproducibility and QA so QA can actually be sure that they test the same bits that users have on their system and reporting bugs becomes a lot easier and the way this works in practice is that RPMOS tree when I run the command RPMOS tree upgrade will start pulling down the new bits and put them somewhere on my disk until the full new image is assembled but it's not gonna modify my running system underneath me like the slash user that I have was read only and it's not going to get modified and I actually have to reboot into my newly downloaded new image which means that the updates are actually atomic so I'm running the old system until I'm ready to switch into the new system with a reboot and there's no weird mix states and if I lose power in the middle then I just the next boot will bring me back to my old system rather than to something that is half updated or broken. Yeah, I already mentioned the third point here RPMOS tree downloads the new image but the old image is still around after I rebooted into the new image. If I find a problem I can easily reboot back into the old system so that means that roll back so I kind of easy. The last point I put down here is that the downloads are at least somewhat efficient because Austria uses content addressing so it'll only download files that have actually changed if it finds that one of the files it needs is already on my system maybe because it didn't change from the old image to the new image then it's just going to keep reusing the file that it already has but moving on to learning to do more things on the system. The first line here shows the dirty secret of RPMOS tree or if you want to put it in a positive way the charming compromise. You can still install packages even on this image based system it's what I'm doing here RPMOS tree install GDB it's going to like go out to a younger repository find the GDB RPM downloaded and then do some magic and the magic that it does is RPMOS tree will compose a new image on my system by combining the existing image that I have currently running with the layered RPMs and create a new image. I still have to reboot to get the new image so in that sense it's still image based but I do lose some advantages that I've just had on the previous slide. I said that everybody's getting the same bits now I've composed an image on my own system that has whatever RPMs I needed at the time so it's no longer going to be the same bits. I lose that advantage but at least it's still atomic I have to reboot to get into the new image and in that sense it's still safe. This is called package layering and it makes the system a lot easier for somebody who comes from a traditional for their own system because at least you don't have you don't have both sides behind your back but just one. But maybe this is not the ideal way to go because this layering, as I said, brings back some of the problems of package based systems so maybe the right way to go is actually to look at containers and when I started this journey in February I didn't know much about containers at all. Hadn't really used stock at all before so I found builder and everybody thinks it's cool so I thought I should try it and build myself a container and this is how you do it you say builder from Fedora which downloads the Fedora base image and then I can run it like this and inside that container I'm using a different color here to indicate that these last two commands you are running inside the container. I actually have DNF there because this is like a Fedora system so a lot more traditional I can just DNF install something and it'll work and then I can try to run it and when I did that back in February I discovered oops, I didn't have a display here because the container is isolated from my system and I tried for quite a while to figure out how to fix this but I don't know Docker and I don't know a lot of the technologies involved there and despite me trying to leak the display socket into the container I could never really make it work. A little frustrating. Thankfully things can get better. The bushy on my team is working on making this something that you don't have to figure out for yourself you're working on a toolbox container which will basically be like a ready-made Fedora container that has a bunch of useful things in it and will be set up in a way that makes it very easy so actually yesterday evening I finally got around to try out what the bushy has so far and I found that if I use this toolbox I can again install my little test application here and I can just run it and it works. So this is hopefully coming in Fedora 29 and should make things a little less hard to get going. Yeah, another quick interlude here. The workstation target audience developers are obviously a very important segment of that so the atomic workstation is supposed to basically replace it over time so we kind of still need to target developers and that means in this case in particular we need to make sure that container tools are installed so all of these will be installed on a silver-blue system. Portman, Builder, Scorpio, and maybe even Docker, I don't know. And this toolbox that I just mentioned, I hope we can bring it in for Fedora 29. And longer term we also want to look at making, yeah making the terminal that you run on the desktop a little more aware of the context in which you are like if you're jumping in and out of containers a lot it becomes important to know where you are so we're looking at making the terminal a little bit aware of that and maybe telling you about that. There's some other alternatives that I tried out back when I started in February just to get my work done. Flatpak Builder is a build tool that comes with Flatpak which uses containers and avoids host tools for like doing builds so that works well on silver-blue and GNOME Builder is an IDE that does things in a similar way also using sandboxes for builds and not using host tools and you can install both of these actually from FlatHub with a command like this down here. Yeah, and now that I've started talking about Flatpak I'll talk a little bit more about that. I said earlier on that we're using our PMOS tree for the OS image itself and we're installing applications via Flatpak and Flatpak is essentially just desktop containers you could say using all the container technologies that Dan Walsh talked about this morning just wrapped up in the right way to make desktop applications work nicely and so they are going to be isolated from the OS and we can update them independently and safely. Currently the best place to get Flatpak is the website called FlatHub. I put the wrong URL there but if you go to www.flaphub.org you'll find 350 or so applications that are packaged in this format and well that's pretty good. It's not something that we're comfortable enabling by default for Fedora because there's a mix of proprietary and free applications there so kind of the API infusion problem all over and thankfully very soon we'll start building Flatpaks directly inside Fedora. Owen is somewhere here who worked on this so as soon as this week actually or next week we'll start seeing Flatpaks come out of that and those will be available from the Fedora registry in the form of OCI containers and we'll look at making those available by default. Yeah going back to my experience from back in February after I learned how to do some basic things in containers I got somewhat comfortable with the system but I'm using the raw height stream and raw height is still raw height so you hit all the usual problems in this broken composites. That's not so bad. I mean if you don't get an update for a day you just keep using what you have. Unfortunately the most recent phase of broken composites has now been lasting for well over a month. I'm a little disappointed by that. I hope we can get a compost going very soon again. Yeah and Owen sometimes you also hit a working compost and it just turns out that the updated image afterwards fails to boot or doesn't work in some other way which on a traditional system would be the time where you look at maybe a few hours of lost work because you have to struggle to get your system back into a working state and that's always very annoying which is why a few people lose raw height if they have any sense. Thankfully on silver blue raw height this is a lot easier because as I said earlier there's easy rollbacks so you can just reboot and switch back to the old image and you lost maybe a minute or two, not an hour or two but that's very nice and that actually gave atomic the slogan fearless updates. That's an important characteristic of this kind of system. You can just update and if it doesn't work as you thought it should then you can easily get back to a working system but it's still just software so it's sufficiently stupid or determined human can still break it and I thought I'd tell you about the one time where I almost painted myself in the corner on the system. So this was a snow day and it was morning and I had just installed an update and I needed obviously a web browser because it was snow day I was stuck at home needed to be in a meeting in an hour and so I rebooted into my new image and I didn't get a login screen because Norm Shell was giving me this error message there I didn't find the GBM renderer, blah blah blah. So far so good. I didn't fear the update because these are fearless updates so I went on ISE and asked some of my graphics team peers what to do and they recommended I should get them the output of a little tool called EGL info so I booted back into the broken image run level three this time tried to run EGL info and all the surprises wasn't installed so I have package layering available so I just ran APMOS to install EGL utils which contains that tool and rebooted to get into this image with EGL utils installed now and well now at the boot prompt I realized my mistake now I was faced with the choice between the broken image and the broken image plus EGL utils which I mean the second one is kind of what I was going for but I had hoped that my working image was still available so it turns out that APMOS 3 keeps exactly two images around at our times and it always assumes that it can never replace the one you're currently booted in because that's supposedly the good one in my situation I was booted into the broken one and still needed to create another one so this was a bit of a bummer I had 50 minutes left of the meeting so what to do I remembered another slogan that Atomic has which is like OS 3 is like get for operating systems so if it's like get there should be a history somewhere I thought a little bit of grabbing around I found a command called OS 3 lock which lists existing commits or images and I kind of abbreviated the output here but the important line is the last one here history beyond this commit not fetched basically what OS 3 was telling me is that I only had like two commits available like the current one and the previous one and the rest of the history is not kept because it's kind of bulky and my disk is not infinite so I had to figure out that I can actually pull more commits from the remote repository using OS 3 pull, giving it a depth so I was going to like go five versions back not infinitely far because you have so much disk space and then I could use another command called OS 3 admin deploy to actually switch to one particular commit that I knew was working and this all was a little stressful but I managed to make it just in time and got into my meeting so that was good but I guess this was the closest I've come to death on Silverblue and that's basically the story I have to tell I hope you're interested in trying this out for yourself now and if you want to, you can actually you don't have to wait for this you can try it out, there's a kind of pre-release that we did with Fedora 28 this spring or not sure when I've had it was released and for Fedora 29 we'll have a first I guess proper release of Silverblue and some of the things I've talked about here today are going to land for Fedora 30 when it's hopefully going to be ready for prime time the ultimate goal of this initiative is that we'll make Silverblue basically ready to take the role of the traditional workstation edition and be useful for everybody but you can try it today Oops, wrong direction Yeah and that's all I had for you today there's a bunch of links you can follow to learn more the docs website has a list of references so the blog post I wrote since February that I have a bunch more stories of life and death on Silverblue thank you for listening and if you have any questions I think I have some time for that Yes, there's a microphone So two questions so the Silverblue like image itself is basically the same set of packages as Fedora workstation has plus a few more, correct? Pretty close, yeah So I'm managing a fleet of REL7 workstations and we frequently have to provide additional packages that aren't applications but add on to the base like you know GNOME desktop environment like say additional GTK themes because users want them or additional fonts because users want them will those be installed as layered RPMs? So that's certainly one option you can just use layering but that kind of goes system by system so if you have a whole fleet that might not be the most practical approach you can also compose your own image if you want I mean the tools are like the RPM Osprey tool is also used on the server side to compose the image that may not be the most well documented aspect of the whole system but it's certainly possible people have done that before if you have a whole system and you want to like put up your own Osprey repository that has a image that is a bit larger has other packages in it that's certainly possible yes for instance there's a few people who created a KDE variant of Silverblue I believe I forgot the name but so it's possible gotcha so I also maintain a fleet of workstations mine for Dora but what does configuration management look like in a world like this? so this is a workstation so most people use it on the laptop so it's kind of individual systems I guess most of the time and if you're looking at Etsy that's not managed by RPM Osprey or rather it's managed in a somewhat smart way Osprey will merge your own edits in slash Etsy with whatever comes in from the updated image like from packages and tries to do a 3-way merge there just for reference we have workstations that are old term I suppose but are actually managed through Ansible and such yeah in theory Etsy is open you can edit Etsy and whatever tools you use to manage that configuration and your systems should work on atomic systems as well I think so I think it was clear at the start but I just want to make sure that the RPM OS tree that approach versus like the Fedora core OS or the core OS merger all that kind of stuff Silverblue is staying with the OS tree stuff is that correct? I can maybe say a little bit more about that but you can also go to Colin Wartler's talk tomorrow to hear like what the plans for the Fedora core OS are but I believe that Fedora core OS is also going to continue using RPM OS tree they kind of try to pick the best technology on both sides and I think for the kind of atomic update system image-based system I think they decided to use RPM OS tree so do you have to reboot for any update or? well as long as you do the things that I showed here yes like if you install like using RPM OS tree upgrade that will require reboot to like get into the new image if you use RPM OS tree installed to like lay a package on top that will also create a new image that you need to boot into there's some experimental things RPM OS tree is full of these charming compromises there's also like an experimental thing where you can like unlock the system and install a package live which basically gets you all the way back to traditional package installs you install into the existing image and things you do take immediate effect but they're usually gone with the next reboot so there's different compromises there it sounded like there were three options for tools that are not in the base image you could use a flat pack you could use a pet container and you could use a layered package install how do you make choices between those? so I'm not the expert on containers but in my life experience since February using the system it seems that package layering brings back a bunch of the problems that you have on the traditional system that like nerves get out of sync and then there's a conflict between the layered package and the base image and like things tend to like fall apart a lot more if you have a lot of packages layered so I found that it's much nicer for me to stay away from package layering and lose either like a container or like a flat pack builder style approach for doing things that's the amount of recommendation I have I guess so you said you had a you're working on something called the toolbox that's a container that enables you to run graphical apps on and other containers so I've tried, you know, three years ago I tried to run graphical apps in Docker and it was annoying because I had to use Tiger, VNC or X2Go or try to figure out some better way to do X alone forwarding I can't find any reason about this toolbox is it a is that the name of it or is that just your nickname or currently that's the nickname I mean it comes from a the CoreOS actually had a thing like that called Truebox I believe or has a thing like that which works very much the same way you basically have this Truebox command which gives you a Fedora and a container and so we kind of stole that name from CoreOS but we haven't really published Debashy has not published what he has yet because he's still like not quite happy with the current state of affairs but I'll push for having getting that out there very soon so you can try it out Thank you My question's about so you at the very end you quickly went past the future of Silverblue how it could become maybe part of workstation in general OS trees initially have to be released as images themselves so how will that work if if OS trees part of a normal workstation release is it going to be released as an image is it going to be a feature within the installer to make it this immutable platform that's updated through OS tree what does that look like so I think we're basically going to like steal whatever atomic host does with Anaconda like this and atomic host has an installer that basically does this already when it gets a OS tree image onto your system initially and I believe it does that by having an OS tree repository on the ISO and installing from there and we're just going to use the same so one thing we haven't worked out in this area is how to pre-install flat packs quite yet because currently the Silverblue image I didn't say that but it still contains a bunch of like graphical apps that are just expected to be there like a terminal and a file manager and like a simple editor or things like that ideally we want all of those to be installed as flat packs so we want to take them out of the OS tree image but we don't want to give you like an empty system when you like install for the first time so we kind of need to figure out how to pre-install flat packs with Anaconda and that's one part that we haven't solved yet and I assume that in the end look similar to what Anaconda currently does for the OS tree image itself Okay, we have time for one more So in many IT organizations you want to mirror the repositories that use for YUM and there's multiple ways of mirroring YUM repositories and I see that OS tree has a way of mirroring repositories but is there a way of mirroring like flat packs? I didn't say that explicitly but flat pack actually uses OS tree itself like underneath for repositories and for local storage flat pack is very similar to APM OS tree in that respect so it's also using OS tree as the repository format whatever's gonna work for APM OS tree will work for flat pack most likely Great I recommend that you go to Colin's talk tomorrow maybe he's going to talk about some ideas he has for making mirroring of OS trees easier and better Who's talk? Colin, Colin Waters Alright, thank you Thanks, my dears Thanks everybody for coming


As we discussed last class about the design consideration of breast excavation, first one is your bottom heave formation or bottom heave. It occurs generally in cohesive soil. Let us say this is a cohesive soil and this part is your ground surface and this is your height h of the excavation height h and this is your over burden gamma h and this you can say that bearing capacity failure, bearing capacity failure, then this comes as a heave. For homogeneous soil clay q ultimate or clay q ultimate is equal to c u n c, c u is your undrained cohesion and for critical depth for critical depth gamma h c is equal to c u n c, this is your critical depth that means h c is equal to c u n c by gamma and you can write it down like this gamma h c by c u which is equal to n c, generally the value of n c is 5.726. So, gamma h c by c u it is called stability number, stability number, if stability number or stability factor, if stability number or stability factor is greater than n c, greater than n c, then failure occurs. For a factor of safety of say, for a factor of safety of 1.5, factor of safety of 1.5 you can write out gamma h by c u which is equal to n c by 1.5 which is equal to 4. Now, what does it mean? If you look at there, if you remember well last class we discussed about the one of the design criteria or design consideration is about your bottom heave. This bottom heave generally occurs in what kind of soil, generally it occurs in case of cohesive soil. How the bottom heave has been formed?  This overburden pressure will increase. Because of this increase in overburden pressure below the cut, what will happen? This soil will fail by means of bearing capacity. Once this soil will fail, then nearby soil will be pushed so that there will be heave formation, there will be heave formation in the excavation. So, this is your excavation. This shaded area is your completely excavation. And in this excavation once there is a heave formation, heave means the soil from the bottom. The soil from the bottom will come inside your underground excavation. Once this thing has been occurred, what will happen? Whatever the structure constructed here like metro rail underground, so it will also fail, it will also fail. So, to start with this, understand this phenomena. Let us say for this cohesive soil, this is a cohesive soil. What is your bearing capacity? For cohesive soil bearing capacity is purely cohesive soil. There is no phi c n c or c u n c. c is your undrained cohesion. Then this c u n c is nothing you have to equate it to critical height, critical height, critical height. So, that means it is not in a kind of critical height. If you equate it into this will be your gamma s c, critical depth or critical height. So, this c u n c depends upon your critical depth. Now, from their critical height is coming s c is equal to c u n c by gamma. If I take this all the terms gamma s c by c u, this is called stability factor. Gamma s c by c u, this is called stability factor which is equal to n c. That means this n c value is generally for bearing capacity factor for cohesion value for purely cohesive soil it is 5.7 to 6. That means gamma s c by c u, this is your stability number or stability factor which is if it is this stability number or stability factor, if it is greater than n c. If it is greater than n c, that means failure occur for cohesive soil. Failure occur means what will happen? There will be a bottom heap formation. That means this is the condition this stability number or factor it should be less than equal to n c. It should not greater than your bearing capacity factor for cohesive soil. Now, for example in Kolkata soil in Kolkata soil c u is equal to in Kolkata soil c u is equal to 2.5 ton per meter square and h generally cut typical example I am taking in Kolkata metro h is equal to 10 meter say height of cut exhibition. So, gamma h by c u which is equal to gamma is equal to 1.8 into h is equal to 10 by 2.5 which is equal to 7.2 greater than n c. That means if there is a underground construction underground construction in Kolkata soil there is a chance that bottom heap will be formed bottom heap formation will be there. So, this is your first criteria first design consideration that is your bottom heap. Then another example this is you can say that this is a uniform soil. Suppose this soil is purely uniform there is no layered soil that means a constant value of c u is there this is your calculation. Now, if I go for second example. So, how do you prevent before I solve the second example how do you prevent the prevent will be you have to dewater you have to dewater from the cohesive soil. So, that water table will go below your far below this there. So, that it will become harder slightly harder. So, that bearing capacity failure may be may be avoided. So, example 2 there are 6 layers of soil as I said this is not a uniform soil layer. So, layer 1 is your firm clay layer 2 is your soft clay c u is equal to 2.5 ton per meter square. Layer 3 again it is firm clay c u is equal to 6 ton per meter square. Then layer 4 is your sandy sand sand sand sand. And layer 5 is your stiff clay c u is equal to 10 ton per meter square. And layer 6 is equal to your dense sand. Now, there is a chance that there is a cut off up to sandy silt.  Where you are getting a kind of hard stratum this is sandy silt or dense sand you can go here. So, if I try with these there is a vertical cut is excavation up to sandy silt.  And this is your kind of you can write h. And let us put it layer by layer layer 1 layer 2 layer 3 layer 1 is equal to gamma 1 c u 1 gamma 2 c u 2 gamma 3 c u 3. Then from there it starts like this then it starts like this. Then it starts let us say this is my case of d 1 then this is gamma 4 and c u 4. Then it if it is coming in this way up to the middle up to the middle the bearing capacity failure I am showing up to this middle like this. So, let us say the failure envelope from here you can extend up to b 1. And here it will be completely b now factor of safety is equal to factor of safety is equal to c u n c plus gamma d f plus c u h by b 1 by gamma h by b 1 by gamma h plus d f. So, that means this is your all stabilizing forces divided by all disturbing forces all disturbing forces. Then what will happen the factor of safety greater than 2.0 it will be ok. If the factor of safety is coming out to be for against your bottom if it is greater than 2.0 then it is ok. So, what we are basically doing how what we are basically doing we are taking a influence line influence of failure envelope here up to a distance b 1. And this is if this is b here a distance b 1 how to calculate b 1. So, b 1 is equal to b by root 2 and d 1 from there it is your lower value. If you look at here first we check your stability number and factor it should be greater than n c. So, that if it is greater than n c then failure will occur based on that you can calculate your factor of safety for finding out factor of safety. Let us say this is an exhibition there are 1, 2, 3, 4, 5, 6 number of layers and at 2 positions or 4th number of layer this is a sandy silt and 6 position is a dense sand. So, that means your exhibition you can extend from here to here or exhibition you extend from here to here. That means the base of your exhibition till exhibition where you are doing up to that depth it should be ensure that up to that depth at that depth there is a hard stratum line. That means this is your hard stratum line sandy silt or dense silt. So, what happened I am taking a this is my involvement d 1 is your d 1 is your influence area based on your bearing capacity. So, once you are getting d 1 then there will be depth of foundation this will be also given height also given b also given only you have to find it out b 1 and d 1. So, d 1 will become it will come based on your bearing capacity calculation then once you get d 1 then you can check your factor of safety your factor of safety is equal to there are 5 layer 1, 2, 3, 4, 4 layers that means c u 1 n c 1 c u 2 n c 2 all for you calculate plus gamma d f gamma into depth of foundation depth of this depth gamma d f plus c u h by b 1 this c u n c this c u n c is your this one is your c u n c and c u h by b 1 this summation of c u h by b 1 by gamma h plus d f divided by gamma h plus d f if you look at here all stabilizing forces divided by all disturbing forces all stabilizing forces divided by all disturbing forces from there from there you have to find it out your factor of safety is equal to 2.0 and b 1 you are going to calculate b 1 is equal to b by root 2 or d 1 b 1 is equal to as it is given b and d. So, b by root 2 or d 1 that means which is lower value of b 1 you are supposed to take it this is for design concentration of bottom heave then next part is your clay bursting how to calculate factor of safety for your bottom heave this has been done then for clay bursting what is the condition for clay bursting clay bursting means clay soil sample will come out along with the water if there is a clay layer of shallow depth then there is a water table then water table is a ground surface then below the shallow depth of clay if there is a kind of sandy soil sand or sandy soil or sand then there is a chance of clay bursting in this case the factor of safety how come this clay bursting will come this sand will give upward movement the sand will give upward movement if you look at here this is your clay of a shallow depth of the clay layer is there then here there is a sand layer.  So, what will happen mixture of sand and clay it will come up in the excavation. So, you have to stop the clay bursting clay brushed means it will brushed out and puncture and the clay will come out from this excavation that is the meaning. So, what is the factor of safety you should take it the factor of safety factor of safety is equal to gamma d plus 2 c u d by b divided by gamma w h plus d which is equal to greater than 1.3 gamma d gamma times into d gamma times into depth of d plus 2 c u d 2 times c u d into b it is nothing, but c u d by b by 2 c u d by b by 2. So, this b by 2 this 2 because this half of the part will be taken into consideration. So, once this half of part has taken into consideration. So, b by 2 that means the 2 has gone there. So, 2 c u d by b then for upward thrust this is your upward thrust upward thrust will be gamma w into h plus d gamma w is your unit weight of water and h plus d is your this height up to this height it is applying your upward thrust. So, this factor of safety should be greater than 1.3 for design consideration of clay bursting that means each case we have to check this whether this factor of safety is satisfying or not. If it is not satisfying then this design has to be changed then that means the depth has to be changed or other criteria this struts has to be provided very close to each other.


The proposed methodology combines optical techniques with mathematical models and optimization algorithms to accurately measure the mechanical properties of soft materials. This technique is able to identify the material's hyper-elastic constants and thickness parameters, which are difficult to measure using traditional methods. This article was authored by Antonio Boccaccio, Luciano Lamberti, Lorenzo Santoro, and others.