Take the 2-minute tour ×  I had Ubuntu first, installed Windows
later, and for a short period of time I could choose the OS to
boot into from the Windows boot, and now it doesn't even give me
a choice, just boots right into windows. I have about 200gb of
data on the Ubuntu partition, and I need a way to boot back in.
How can I resolve this issue?  share|improve this question  2
Answers 2  You will need to re-install Grub. Every time I
installed Windows AFTER Linux, Windows would write its Master
Boot Record (MBR) over Grub, therefore you will need to re-
install grub on your drive.  I don't remember the command from
Grub, been too long, hopefully someone can help you out with a
link or a step-by-step guide.  Every time I had this issue, all
of my data was safe. Unless you did something wrong or something
went wrong, all your files should be fine.  share|improve this
answer How do I get to the terminal if I cant boot into ubuntu?
–  Nigel Oct 22 '12 at 20:20 You ned to yuse the live CD or
usbstick –  Louis Loud