BTW I got the idea that this might work from a comment online (found with google) by the author of Ubiquity. To give credit where it is due. He said something like he should make it warn the user rather than crash or something like that.
-- Installer crashed (xfs related?) https://launchpad.net/bugs/49178 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
