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