# getenforce
enforcing
# setenforce 0
permissive
# vi /etc/selinux/config
SELINUX=disabled
...

# yum install epel-release-6-8.noarch.rpm
//或
yum -y install http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

# uname -r
2.6.32-431.el6.x86_64
# cat /etc/redhat-release 
CentOS release 6.5 (Final)

[root@sean ~]# ./check-config 
warning: /proc/config.gz does not exist, searching other paths for kernel config...
info: reading kernel config from /boot/config-2.6.32-431.el6.x86_64 ...

Generally Necessary:
- cgroup hierarchy: properly mounted [/cgroup]
- CONFIG_NAMESPACES: enabled
- CONFIG_NET_NS: enabled
- CONFIG_PID_NS: enabled
- CONFIG_IPC_NS: enabled
- CONFIG_UTS_NS: enabled
- CONFIG_DEVPTS_MULTIPLE_INSTANCES: enabled
- CONFIG_CGROUPS: enabled
- CONFIG_CGROUP_CPUACCT: enabled
- CONFIG_CGROUP_DEVICE: enabled
- CONFIG_CGROUP_FREEZER: enabled
- CONFIG_CGROUP_SCHED: enabled
- CONFIG_MACVLAN: enabled
- CONFIG_VETH: enabled
- CONFIG_BRIDGE: enabled
- CONFIG_NF_NAT_IPV4: missing
- CONFIG_IP_NF_TARGET_MASQUERADE: enabled
- CONFIG_NETFILTER_XT_MATCH_ADDRTYPE: missing
- CONFIG_NETFILTER_XT_MATCH_CONNTRACK: enabled
- CONFIG_NF_NAT: enabled
- CONFIG_NF_NAT_NEEDED: enabled

Optional Features:
- CONFIG_MEMCG_SWAP: missing
- CONFIG_RESOURCE_COUNTERS: enabled
- CONFIG_CGROUP_PERF: enabled
- Storage Drivers:
 - "aufs":
 - CONFIG_AUFS_FS: missing
 - CONFIG_EXT4_FS_POSIX_ACL: enabled
 - CONFIG_EXT4_FS_SECURITY: enabled
 - "btrfs":
 - CONFIG_BTRFS_FS: enabled
 - "devicemapper":
 - CONFIG_BLK_DEV_DM: enabled
 - CONFIG_DM_THIN_PROVISIONING: enabled
 - CONFIG_EXT4_FS: enabled
 - CONFIG_EXT4_FS_POSIX_ACL: enabled
 - CONFIG_EXT4_FS_SECURITY: enabled

# yum install docker-io
Dependencies Resolved

===========================================================================================
 Package      Arch    Version   Repository  Size
===========================================================================================
Installing:
 docker-io      x86_64   1.1.2-1.el6   epel   4.5 M
Installing for dependencies:
 lua-alt-getopt     noarch   0.7.0-1.el6   epel   6.9 k
 lua-filesystem     x86_64   1.4.2-1.el6   epel   24 k
 lua-lxc      x86_64   1.0.6-1.el6   epel   15 k
 lxc       x86_64   1.0.6-1.el6   epel   120 k
 lxc-libs      x86_64   1.0.6-1.el6   epel   248 k

Transaction Summary
===========================================================================================
Install  6 Package(s)

# service docker start
//或
# docker -d 

[f32e7d9f] +job initserver()
[f32e7d9f.initserver()] Creating server
[f32e7d9f] +job serveapi(unix:///var/run/docker.sock)
2014/10/22 13:02:45 Listening for HTTP on unix (/var/run/docker.sock)
Error running DeviceCreate (createPool) dm_task_run failed
[f32e7d9f] -job initserver() = ERR (1)
2014/10/22 13:02:45 Error running DeviceCreate (createPool) dm_task_run failed
nWed Oct 22 14:35:54 CST 2014n

Stopping docker:            [ OK ]
Starting cgconfig service: Error: cannot mount cpuset to /cgroup/cpuset: Device or resource busy
/sbin/cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failed
Failed to parse /etc/cgconfig.conf       [FAILED]

Starting docker:            [ OK ]