Which version of docker were you upgrading from/to? I don't have a /var/lib/docker/devicemapper, was that from an older version? (Sorry, I'm not familiar with the history of the docker packaging)
Which version of docker were you upgrading from/to? I don't have a /var/lib/ docker/ devicemapper, was that from an older version? (Sorry, I'm not familiar with the history of the docker packaging)