Thanks for your bug report. Could you possibly attach /var/log/installer/syslog file too? It seems like bug 47046 to me, but it ought to be fixed 6.10 already. Thanks in advance!
** This bug has been marked a duplicate of bug 47046 breaks if system partitions are not reformatted ** This bug is no longer a duplicate of bug 47046 breaks if system partitions are not reformatted ** Changed in: ubiquity (Ubuntu) Status: Unconfirmed => Needs Info -- Installer crashed installing 6.10 over 6.04 https://launchpad.net/bugs/68298 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs