I'm hitting this bug, as described in comment #43 and comment 51 Running Lucid, on 64-bit,
grub-probe -t fs /boot grub-probe: error: no mapping exists for `md1'. grub-install --recheck --modules="mdraid raid" /dev/md1 /usr/sbin/grub-probe: error: no mapping exists for `md1'. /usr/sbin/grub-probe: error: no mapping exists for `md1'. /usr/sbin/grub-setup: error: no mapping exists for `md1'. grub-install -v grub-install (GNU GRUB 1.98-1ubuntu9) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/527401 Title: grub-installer fails to install on a raid1 array -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs