一、移除Docker

yum remove docker

二、移除 Docker-selinux

yum remove docker-selinux

三、修改Docker镜像配置文件

rpm -iUvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

四、安装Docker

yum update -y
yum -y install docker-io

五、启动Docker

service docker start
chkconfig docker on