[SOLVED] md devices have odd names

hedron · 08-09-2011, 10:55 PM

I have some raid devices named md127 and md126 when I created them as md2 and md3 or so. Why does it do that? It works fine, it's just irritating because then I have to go and redo fstab, etc.

hedron · 08-11-2011, 07:53 PM

How am I supposed to write my fstab if they keep changing?

hedron · 08-11-2011, 09:51 PM

I guess they got rid of preferred minor variable in metadata 1.2. I don't understand this because I could just imagine the headaches this would cause in large setups. I'm reading there is no way to go from 1.2 back to 0.90. Ugh!

I guess the only solution I can think of, is to copy my data over to another hard drive. Then recreate the array using --metadata=0.90 option and then reformat the drive. I just wish there was an easier way.

hedron · 08-13-2011, 11:54 PM

OK, I set this in mdadm.conf:

Code:

HOMEHOST <uname -n>

...or so...

And it mounts the correct name properly. Although, I did do something like this:

Code:

mdadm /dev/md3 --hostname=<uname -n>:3 /dev/sda1 /dev/sdb1

...or so... before that. I think. I'm a little drunky that's why I'm not exactly sure what I did. lol ...

At least, for now anyway...