Thank you for letting us know. Your description of the failed install is quite detailed and may still be useful. I will leave this open as a Confirmed bug.
** Changed in: ubiquity (Ubuntu) Status: Needs Info => Confirmed -- Installation error https://launchpad.net/bugs/52457 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs