A workaround is to execute grub-install /dev/sda and reboot. I also did an update-grub in a chroot but that printed out some errors and I guess it wasn't necessary ...
-- ubiquity crashed with AttributeError in __init__() https://bugs.launchpad.net/bugs/546153 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs