（1）yum安裝docker
[[email protected] ~]# yum install docker-io
（2）啟動docker
[[email protected] ~]# /etc/init.d/docker restart
停止 docker：                                              [失敗]
Starting docker:                                   [確定]
[[email protected] ~]# /etc/init.d/docker status
docker 已死，但 pid 檔案仍存

問題2：缺少依賴的包

[[email protected] ~]# docker -d
啟動報錯，日誌檢視如下
tail -f /var/log/docker
time="2015-03-09T16:05:29+08:00" level="info" msg="+job serveapi(unix:///var/run/docker.sock)" 
time="2015-03-09T16:05:29+08:00" level="info" msg="WARNING: You are running linux kernel version 2.6.32-431.el6.x86_64, which might be unstable running docker. Please upgrade your kernel to 3.8.0." 
time="2015-03-09T16:05:29+08:00" level="info" msg="Listening for HTTP on unix (/var/run/docker.sock)" 
/usr/bin/docker: relocation error: /usr/bin/docker: symbol dm_task_get_info_with_deferred_remove, version Base not defined in file libdevmapper.so.1.02 with link time reference
（3）google後，解決辦法如下
yum install device-mapper-event-libs
（4）重啟docker
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問題2：cgroup 未掛載

啟動docker,~$ sudo docker -d
INFO[0000] [graphdriver] using prior storage driver "aufs" 
INFO[0000] Listening for HTTP on unix (/var/run/docker.sock) 
WARN[0000] Running modprobe bridge nf_nat failed with message: , error: exit status 1
WARN[0000] Your kernel does not support cgroup memory limit: mountpoint for memory not found
WARN[0000] mountpoint for cpu not found                 
FATA[0000] Error mounting devices cgroup: mountpoint for devices not found 

為cgroup在宿主機上沒有掛載。

vim /etc/fstab

none        /sys/fs/cgroup        cgroup        defaults    0    0

重啟伺服器即可