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I'm using openSUSE Tumbleweed, fully updated. My current system setup has two partitions, one for / formatted with "btrfs", and another for /home, using "ext4".

I'd like to set the Docker image location in a position different than the default place in /var/lib/docker/, maybe in /home/docker-data/.

How can I do that? I found some guides, but I don't know if these are relevant to openSUSE or up to date with the latest Docker versions.

I've read that I should also set a different Storage Driver (currently it is set as btrfs, but the partition where I want to store the images is formatted with ext4), how it is done?

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https://stackoverflow.com/questions/24309526/how-to-change-the-docker-image-installation-directory

With recent versions of Docker, you would set the value of the graph parameter to your custom path, in /etc/docker/daemon.json (according to https://docs.docker.com/v1.11/engine/reference/commandline/daemon/#daemon-configuration-file).

With older versions, you can change Docker's storage base directory (where container and images go) using the -goption when starting the Docker daemon. (check docker --help). You can have this setting applied automatically when Docker starts by adding it to /etc/default/docker

Alternatively:

You can use the --graph or --data-root option in the service file where ExecStart is defined after dockerd, e.g. ExecStart=/usr/bin/docker daemon -H fd:// --graph="/mnt"

With your second question, if you're referring to the Docker storage driver, you can define it using the daemon.json file

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