无法启动Docker守护程序

我在CentOS 7中安装了docker，当我运行时

[root@hk-qa-linux-2 ~]# docker daemon

我得到以下信息

    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 

当我检查我的文件挂载时，我可以看到cgroup

[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

不知道如何解决这个问题。任何建议都会有帮助

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

---

谢谢

您是否尝试以root用户身份启动它？看到一个不同的提示，让我怀疑。对不起，我的坏，尝试一切作为根。我已经更新了我的问题，可以尝试

sudo服务docker start

和

sudo服务docker status

并检查您的日志：

tail-n 100/var/log/messages

尝试使用

cat/proc/self/mountinfo

、

cat/proc/cgroups

和

sudo/etc/init.d/cgconfig status

调试。如果最后一个命令失败，您可以尝试

sudo-yum-install-libcgroup

。