Tom Bishop wrote:
On Thu, Sep 4, 2014 at 3:30 PM, m.roth@5-cent.us wrote:
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....
Thanks for the followup.
:)
Yup. My manager had asked me to figure it out, and as it just so happened our director wound up needing more space on another machine, that I could reboot as I will, I could do the testing.
mark, watch out for the gotchas