Docker 启动失败Starting docker (via systemctl): Job for docker.service failed

Starting docker (via systemctl): Job for docker.service failed. See 'systemctl status docker.service' and 'journalctl -xn' for details.
[FAILED]

解决办法：

yum install device-mapper-devel

fixed this for me.

Using the default configuration of the latest docker 1.8.0 release, systemd can't start docker.

Workaround:

yum install docker-selinux

参考：https://github.com/docker/docker/issues/12108
https://github.com/docker/docker/issues/15498 http://dockone.io/article/620