问题描述：
level=error msg="devmapper: Udev sync is not supported. This will lead to data loss and unexpected behavior. Install a dynamic binary to use devicemapper or select a different storage driver. For more information, see https://docs.docker.com/engine/refere
解决办法
rm -rf /var/lib/docker
如果没有/var/lib/docker这个路径，则需要安装包
yum install udev udev-devel device-mapper-libs
