How do I change the Docker image installation directory?

You can change Docker’s storage base directory (where container and images go) using the -g option when starting the Docker daemon. Ubuntu/Debian: edit your /etc/default/docker file with the -g option: DOCKER_OPTS="-dns 8.8.8.8 -dns 8.8.4.4 -g /mnt" Fedora/Centos: edit /etc/sysconfig/docker, …