How to solve the Docker container startup failure

Question: After the computer restarts, the mysql container in docker cannot be restarted. I don’t know why

The above steps: If sudo docker start name can restart, that is, enter: docker ps and you can see that the service you need is already started, then you don’t need to do the following steps. If it’s just like the above, then continue reading below:

Solution: Delete the container that cannot be started, and then run the image again.

Note that the container name has changed to mysql at this time, and it is in a closed state. It still cannot run when running the image again, but it can be started when starting the image again.

Supplementary content

1. View the mount points occupied by Docker

cat /proc/mounts | grep "mapper/docker" | awk '{print $2}'

2. Manually unmount the occupied mount point

3. Restart

docker ps -aq | xargs -I {} docker start {}

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