On 07/04/2020 14:19, Alexander Shenkin wrote:
Re re-growing, I was hoping that running on a newer mdadm (4.1) might
fix the problem, and if i still encountered it, perhaps running the
following might unstick it:
echo frozen > /sys/block/md0/md/sync_action
echo reshape > /sys/block/md0/md/sync_action
But, I personally have no idea what happened (really), nor why...:-(
iirc pretty much all these reports come from oldish Ubuntu systems ...
What happened *could* be that you have an updated franken-kernel, plus
an old mdadm, and the mess needs an Igor to stitch it all together...
If you ARE going to try the grow again, I'd use an up-to-date recovery
system to run the grow, and then reboot back in to the old Ubuntu once
your system is back.
And seriously think about upgrading your distro to the latest LTS.
Cheers,
Wol
