On 18/07/2022 13:20, Nix wrote:
So I have a pair of RAID-6 mdraid arrays on this machine (one of which
has a bcache layered on top of it, with an LVM VG stretched across
both). Kernel 5.16 + mdadm 4.0 (I know, it's old) works fine, but I just
rebooted into 5.18.12 and it failed to assemble. mdadm didn't display
anything useful: an mdadm --assemble --scan --auto=md --freeze-reshape
simply didn't find anything to assemble, and after that nothing else was
going to work. But rebooting into 5.16 worked fine, so everything was
(thank goodness) actually still there.
Everything should still be there ... and the difference between mdadm
4.0 and 4.2 isn't that much I don't think ... a few bugfixes here and
there ...
When you reboot into the new kernel, try lsdrv
https://raid.wiki.kernel.org/index.php/Asking_for_help#lsdrv
I don't know the current state of play with regard to Python versions
there ... last I knew I had to explicitly get it to invoke 2.7 ...
But I've not seen any reports of problems elsewhere, so this is either
new or unique to you I would think ...
Cheers,
Wol
