On 1/30/14, 1:08 PM, Richard Gomes wrote: > This is the culprit: /dev/sdb1 is not known as ext4, as it should be. I don't know how to affect that, but are you sure that's actually the problem? In my experience, a boot problem involving mirrored RAID 1 is more likely to be a GRUB issue, needing to be fixed with something like: # grub-install /dev/sdb (This assumes that /dev/sdb1 really is a valid mirror of /dev/sda1; I'm taking that on faith because you didn't include the output of "mdadm --detail" and "mdadm --examine".) -- Robert L Mathews, Tiger Technologies, http://www.tigertech.net/ -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html