Zaphod, thanks for reporting. If that is actually happened (and we have no reason to doubt it is correct :) ) then this is a very interesting case. I'm marking it as Medium so it will appear on Colin's radar.
As Vassilis says, /var/log/installer/partman would be very interesting to see. ** Changed in: ubiquity (Ubuntu) Importance: Undecided => Medium -- Installer crashed. https://launchpad.net/bugs/55012 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs