I copy here a link to message of someone who seems to have investigated this quite far: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/686859/comments/15
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1267922 Title: Installer becomes confused and crashes when grub-install fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1267922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs