You need to install grub to the underlying physical disks ( /dev/sda, /dev/sdb, etc ), not the raid array.
** Changed in: grub2 (Ubuntu) Status: Confirmed => Invalid ** Changed in: grub-installer (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/462171 Title: 'grub-install --no-floppy /dev/md0' fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/462171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs