I confirm that I am seeing a similar if not identical problem. I have an external USB drive formatted with Luks and ext3. I'm running gutsy on amd64 and have the update manager enabled.
** Changed in: gnome-volume-manager (Ubuntu) Status: New => Confirmed -- Can't mount a LUKS volume after unmounting https://bugs.launchpad.net/bugs/154679 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs