On Thu, Sep 4, 2014 at 3:30 PM, <m.roth at 5-cent.us> wrote: > Ok, folks, > > Here's the answer: making a software RAID on a bare drive with no GPT > works fine. If it has a GPT, and no partition, it fails on reboot, even > with an /etc/mdadm.conf. > > I've proved this: > first, I created the array on the bare drive, rebooted, and > /dev/md0 was there; > then, I used parted to create a gpt, then the array, reboot, no > md0, even with mdadm --assemble, even with /etc/mdadm.conf. > finally, I got rid of the disk label (parted to make an msdos > label, the zeroing out the beginning of the disk), and again made > the RAID on the bare drives, reboot, and md0 is there. > > So that's what killed me. Admins, take heed.... > > mark > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos Thanks for the followup. :)