On 08/05/2022 14:18, Bob Brand wrote:
If you’ve stuck with me and read all this way, thank you and I hope you
can help me.
https://raid.wiki.kernel.org/index.php/Linux_Raid
Especially
https://raid.wiki.kernel.org/index.php/Linux_Raid#When_Things_Go_Wrogn
What you need to do is revert the reshape. I know what may have
happened, and what bothers me is your kernel version, 3.10.
The first thing to try is to boot from up-to-date rescue media and see
if an mdadm --revert works from there. If it does, your Centos should
then bring everything back no problem.
(You've currently got what I call a Frankensetup, a very old kernel, a
pretty new mdadm, and a whole bunch of patches that does who knows what.
You really need a matching kernel and mdadm, and your frankenkernel
won't match anything ...)
Let us know how that goes ...
Cheers,
Wol