Could you attach /var/log/syslog and /var/log/partman from the installer (you can extract these by going back to the installer main menu and selecting "Save debug logs")? I'm not sure how much I'll be able to do about this, as it sounds like the kernel may be returning bogus information, but it's worth a shot.
** Changed in: ubiquity (Ubuntu) Sourcepackagename: ubiquity => parted ** Changed in: parted (Ubuntu) Status: Unconfirmed => Needs Info -- Partioner from OEM install buggy. Can't install from livecd because of qtparted https://launchpad.net/bugs/86141 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs