0. yum install -y yum-utils device-mapper-persistent-data lvm2
1. sudo yum install epel-release
## sudo yum remove docker*
yum install docker-io, yum install docker-engine 均告失败
2. wget https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86_64/docker-engine-1.7.1-1.el6.x86_64.rpm
3. sudo rpm -ivh docker-engine-1.7.1-1.el6.x86_64.rpm
4. 安装配置cgroup
yum install -y libcgroup
sudo vim /etc/fstab
增加一行
none /sys/fs/cgroup cgroup defaults 0 0
5. reboot
6. service docker start
7. 测试
docker pull centos成功
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