Exit code 139 is a segmentation fault; the only real way that can happen in this particular context is if there's been a problem reading from the CD. This is generally due to a faulty CD/DVD disk or drive, rather than being an installer bug as such. It may help to clean the CD/DVD, to burn the CD/DVD at a lower speed, or to clean the CD/DVD drive lens (cleaning kits are often available from electronics suppliers).
** This bug is no longer a duplicate of bug 72713 Installer Crash ** Changed in: ubiquity (Ubuntu) Status: Needs Info => Rejected ** Changed in: ubiquity (Ubuntu) Assignee: (unassigned) => Colin Watson -- My installation crashed https://launchpad.net/bugs/75448 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs