Aug 22 14:22:57 pollyanna dockerd: time="2022-08-22T14:22:57.011768697+09:00" level=error msg="Handler for GET /v1.30/images/mysql:8.0.29/json returned error: layer does not exist"
Aug 22 14:23:18 pollyanna dockerd: time="2022-08-22T14:23:18.862909496+09:00" level=error msg="Handler for GET /v1.30/images/mysql:8.0.29/json returned error: layer does not exist"
Aug 22 14:23:24 pollyanna dockerd: time="2022-08-22T14:23:24.832312951+09:00" level=error msg="Handler for GET /v1.30/images/mysql:8.0.29/json returned error: layer does not exist"rm -rf /var/lib/docker
※rm -rf /var/lib/docker/* でいける
/var/lib/docker/backup 的なディレクトリ作って中に放り込んだらダメだった。バックアップ時は別のディレクトリへ。