This is still broken with 14.04 and the same patch seems to work: $ lsb_release -rd Description: Ubuntu 14.04.2 LTS Release: 14.04
$ apt-cache policy grub2 grub2: Installed: (none) Candidate: 2.02~beta2-9ubuntu1 Version table: 2.02~beta2-9ubuntu1 0 500 http://gb.archive.ubuntu.com/ubuntu/ trusty-updates/universe amd64 Packages 2.02~beta2-9 0 500 http://gb.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1217933 Title: update-grub fails to detect other md OS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1217933/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs