On 06/03/17 22:13, Peter Sangas wrote: > In addition, the wiki says " you will need to configure your distro to use an initramfs. > > here are the last few lines of my grub.cnf: > > echo 'Loading Linux 4.4.0-36-generic ...' > linux /vmlinuz-4.4.0-36-generic root=UUID=cddffa50-9713-4205-aab6-86745735958b ro recovery nomodeset > echo 'Loading initial ramdisk ...' > initrd /initrd.img-4.4.0-36-generic > > should I be concerned my grub.cnf uses initrd.img and not initramfs? My grub.cnf was last modified 11/2016 and I've rebooted successfully into a RAID1 since. I think your problem is right there !!! Look at the wiki, but I can NOT see the magic command "domdadm", without which mdadm doesn't get loaded and the array doesn't get assembled. No array, no root, no system ... (Oh - initrd, initramfs, they're probably the same thing. :-) Cheers, Wol -- 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