I have tried to move docker /var/lib/docker to /data/lib/docker on my ubuntu 18.04 server , and I changed /lib/systemd/system/docker.service to :

ExecStart=/usr/bin/docker daemon -H fd://
ExecStart=/usr/bin/docker daemon -g /new/path/docker -H fd://

Now my containers and docker daemon fails to start even when I change the file back to previous one.

Is there any fix ?


The problem resolved by restarting containerd service :

systemctl restart containerd 

The problem came from when I changed systemd , containered daemon was affected , and without restarting the daemon , I could not restart docker service

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