thank you for reporting back. I think this is more likely to be a bug in the update-manager package of which do-release-upgrade is a part of. reassigning.
** Changed in: apt (Ubuntu) Assignee: Rolf Leggewie (r0lf) => (unassigned) ** Package changed: apt (Ubuntu) => update-manager-core (Ubuntu) ** Changed in: update-manager-core (Ubuntu) Status: Incomplete => Confirmed -- release upgrade invalidates apt pinning preferences https://bugs.launchpad.net/bugs/412297 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs