docker守护进程以前工作正常，但在我将linux内核版本从4.10更新到4.12之后，我发现Docker守护进程无法工作：
当我运行docker ps时出现错误：
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
我运行systemctl status docker.service查看详细信息，输出错误：
systemd[1]: Failed to start Docker Application Container Engine.
以及dockerd':
ERRO[0001] [graphdriver] prior storage driver aufs failed: driver not supported
Error starting daemon: error initializing graphdriver: driver not supported
操作系统：linux Ubuntu 16.04 LTS内核：v4.12，泊坞版：Docker version 17.07.0-ce, build 8784753