On 25/11/20 13:31, Rich Freeman wrote: > Now, one area I would use UUIDs is with mdadm if you're not putting > lvm on top. I've seen mdadm arrays get renumbered and that is a mess > if you're directly mounting them without labels or UUIDs.
Or if you do it properly you don't need UUIDs :-) mdadm always USED to number its arrays starting with 0. Now it counts down from 127. Worse, if you use numbers, mdadm just changes them as it sees fit. I created my array as md0, next thing I know it's md127. It is recommended to use names, so I call it by what it is, so I have things like /dev/md/gentoo, /dev/md/home etc. I'm moving to lvm, and will use the same tactic. Cheers, Wol