Article 5NZKC Wrong disk added to raid 1 after reboot and lost sda1 partition.

Wrong disk added to raid 1 after reboot and lost sda1 partition.

by
kalhohan
from LinuxQuestions.org on (#5NZKC)
Hello,
First of all, I have a RaspPi with quad sata hat, with 4 disks, SDA was my primary disk with apps (plex, nextcloud) and library installed on SDA1 partition.
SDB and SDC is a software raid1 array (for nextcloud data), and sdd is a storage device (second plex lib).

After reboot it seems that somehow sda and sdc have been mismatch and mdadm wrongly added sda (whole disk) to the array... and sda1 is now missing

Now I have 3 disks in the array instead of two.

When a I saw that I tried to remove sda and sdc from the array but they keep on being readded after reboot, I physically removed for now and device shutdown

My question is, is it possible to retrieve sda1 partition? Or is it definitively lost ? with a recovery software ?

Thanks for your time.

(ps: currently at work so I can't output commands till this evening)latest?d=yIl2AUoC8zA latest?i=khD0IKdIh3g:YHZrFLzwUZc:F7zBnMy latest?i=khD0IKdIh3g:YHZrFLzwUZc:V_sGLiP latest?d=qj6IDK7rITs latest?i=khD0IKdIh3g:YHZrFLzwUZc:gIN9vFwkhD0IKdIh3g
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