tags: docker
1. Personal environment
vmware15+centos7.9+kernel 3.10
The docker version is 17.06.1-ce
2. Problem picture

3. The reason for this problem is
I directly deleted the old version of docker, but the old version of docker once installed images and containers. Finally, after installing the new version of docker, starting docker will fail, because the location of the image and container is occupied by the old version of docker, all will fail to start
4. Solution
Just delete the old version of the docker file directly
rm -rf /var/lib/docker/
Note that there is a / at the end of the above, indicating that the files under the docker directory are deleted
If it shows that it cannot be deleted, umount each file in the /var/lib/docker directory
unmount /var/lib/docker/xxx
Finally, thanksThis blogger's blog
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