Mount 13.5 raid 6 on new 15.5 system

English Install/Boot/Login
#1

I have an older (13.5) system with a RAID 6 which works fine. I just built a new 15.5 system and just want to swap the system disks and activate the RAID 6. System disk is an SSD not part of the RAID 6.

Will I likely have any problem?

I realize one can just “try it” but I worry the new system will somehow try to fix or update the RAID 6 (e.g., superblocks), fail, and then it will no longer work on the 13.5 either, that sort of problem. The RAID 6 is formatted to be one big LVM with a bunch of logical partitions all EXT4. Ok, one test BTRFS but it’s not important, the other partitions are very important.

Yes it’s all backed up but I don’t look forward to restoring a multi-TB RAID 6! That could take days.

Is there any obvious reason why the RAID 6 built under 13.5 shouldn’t “just work” under 15.5?

#2

Is there any obvious reason why the RAID 6 built under 13.5 shouldn’t “just work” under 15.5?

If the RAID array was built in a different byte order than your present system, you may need to reassemble it. Attempting to mount a damaged or corrupted RAID array may result in additional harm or data loss.