I can see that this has already been reported a few times already. From the report in bug #62939. They suggest it might have crashed due to the wireless connection. I don't use a wireless card but looking at their lspci I can see we are both running ICH7 chipsets.
** Attachment added: "lspci" http://librarian.launchpad.net/4563316/lspci -- Installer crashed https://launchpad.net/bugs/62852 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
