Symptoms: Docker service fails to start with error: failed to start daemon: Couldn't create reference store repository: invalid character '\x00' looking for beginning of value if(window.hljsLoader && !document.currentScript.parentNode.hasAttribute('data-s9e-livepreview-onupdate')) { window.hljsLoader.highlightBlocks(document.currentScript.parentNode); } Problem File /var/lib/docker/volumes/metadata.db was deleted/truncated. Solution: There is no way to recreate the file, restore /var/lib/docker/volumes/metadata.db or /var/lib/docker.img from a backup.

[SOLVED] Docker: Couldn't create reference store repository

Docker service fails to start with error:

failed to start daemon: Couldn't create reference store repository: invalid character '\x00' looking for beginning of value

File /var/lib/docker/volumes/metadata.db was deleted/truncated.

There is no way to recreate the file, restore /var/lib/docker/volumes/metadata.db or /var/lib/docker.img from a backup.