@Yozen, thanks for adding that comment that was exactly what was happening to me, as I was receiving the same described failure message. I was attempting to run sudo update-grub from my nfs mounted home at work. I cd'd into /tmp and re-ran the command and it completed without any issues.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/673438 Title: update-grub: cannot restore the original directory To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/673438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs