On Sat, Mar 7, 2015 at 5:23 PM, Chris Murphy <lists at colorremedies.com> wrote: > The grub.cfg should have a boot parameter mduuid which makes mdadm in I'm not sure if grub2-mkconfig will automatically detect and add mduuid to grub.cfg. You can try it. If not then you could add the entry to the extra boot params line in /etc/default/grub and then recreate the grub.cfg with grub2-mkconfig -o... -- Chris Murphy