Docker安装完启动时提示Failed to start docker.service: Unit docker.service is masked.

Ubutntu安装完Docker后,执行

sudo service docker start

提示

Failed to start docker.service: Unit docker.service is masked.

解决方案:

执行如下三条指令

systemctl unmask docker.service
systemctl unmask docker.socket
systemctl start docker.service

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