There does not seem to be clear documentation on this. Just a note that from your description I was not completely sure whether you did unmount before starting the release procedure. I would say unmount is a must. Doing so, I also ended up in the state where bcache0 still existed. But I was able to get rid of that by
echo 1 >/sys/block/bcache0/bcache/stop -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to bcache-tools in Ubuntu. https://bugs.launchpad.net/bugs/1377142 Title: Bcache doesn't allow full unregistering without rebooting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcache-tools/+bug/1377142/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
