Not able to start Docker daemon
<p>I have installed docker in CentOS 7 and when I run </p>

<pre><code>[root@hk-qa-linux-2 ~]# docker daemon
</code></pre>

<p>I get the following</p>

<pre><code>    INFO[0000] libcontainerd: new containerd process, pid: 611 
ERRO[0001] 'overlay' not found as a supported filesystem on this host. Please ensure kernel is new enough and has overlay support loaded. 
INFO[0001] Graph migration to content-addressability took 0.00 seconds 
WARN[0001] Your kernel does not support cgroup memory limit 
WARN[0001] Unable to find cpu cgroup in mounts          
WARN[0001] Unable to find blkio cgroup in mounts        
WARN[0001] Unable to find cpuset cgroup in mounts       
WARN[0001] mountpoint for pids not found                
FATA[0001] Error starting daemon: Devices cgroup isn't mounted 
</code></pre>

<p>When I checked my file mounts I could see cgroup</p>

<pre><code>[root@hk-qa-linux-2 cgroup]# df
Filesystem     1K-blocks   Used Available Use% Mounted on
/dev/loop6      61796348 689300  57944984   2% /
none                 100      0       100   0% /dev
cgroup                12      0        12   0% /sys/fs/cgroup
tmpfs            4032272      0   4032272   0% /sys/fs/cgroup/cgmanager
tmpfs            4032272      0   4032272   0% /dev/shm
tmpfs            4032272   8244   4024028   1% /run
tmpfs             104860      0    104860   0% /run/user/0
</code></pre>

<p>Not sure how to solve this issue. Any suggestion would be helpful</p>

<pre><code>System details

[root@hk-qa-linux-2 ~]# cat /etc/system-release
CentOS Linux release 7.2.1511 (Core)

[root@hk-qa-linux-2 ~]# uname -r
4.2.6-1-pve 

[root@hk-qa-linux-2 ~]# docker --version
Docker version 1.12.0, build 8eab29e
</code></pre>

<p>Thanks</p>