CentOS7 安装docker 解决启动不了的问题

 CentOS7安装docker 启动不了，在工作当中遇到这个问题，当时急的不清，网上资料又不多，不过经过自己的捣鼓终于解决了

这个问题！

[root@test ~]# yum update[root@test ~]# yum install docker [root@test ~]# service docker startRedirecting to /bin/systemctl start docker.serviceJob for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.[root@test ~]# systemctl status docker.service● docker.service - Docker Application Container Engine  Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)  Active: inactive (dead) (Result: exit-code) since 四 2016-03-10 13:01:21 CST; 7s ago   Docs: http://docs.docker.com Process: 29939 ExecStart=/usr/bin/docker daemon $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY (code=exited, status=2) Main PID: 29939 (code=exited, status=2)  CGroup: /system.slice/docker.service      └─29970 mkfs.ext4 -E nodiscard,lazy_itable_init=0,lazy_journal_ini...