What should I do if docker fails to start the hello-world container?

Problem description:

The image file hello-world has been captured to the local warehouse, but an error occurred when running the following command to run the image file.

docker container run hello-world

Cause analysis:

Docker uses the overlay2 file system, and the system can only recognize the overlay file system by default.

Solution:

1. Stop the docker service

systemctl stop docker

2. Delete the docker file:

rm -rf /var/lib/docker

This command will delete all image mirrors, it is recommended Back up your files in advance.

3. Edit the file

vi /etc/sysconfig/docker-storage

Modify the contents of the docker-storage file as follows:

##4. Restart docker

Recommended tutorial:

docker tutorial

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