I just has the same issue using a LUKS encrypted USB drive (created in Karmic) on a Lucid beta LiveCD session.
Unfortunately the workaround in the description no longer works for me. -- Plugging in a LUKS device causes the following error: Error unlocking device: cryptsetup exited with exit code 239: Command failed: Device already exists https://bugs.launchpad.net/bugs/484429 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs