Have a 4-drive Ubuntu mdadm raid in a system whose motherboard (ASUS N1996) failed permanently.
I tried putting the 4 drives in another system with a different motherboard, but when it came up it only saw one drive and I think it ran a filesystem check, which I read here might've deleted the superblocks: here https://askubuntu.com/questions/69086/mdadm-superblock-recovery
It boots into a degraded raid and the md2 array is not active
There are no /dev/sd* links at all, which I don't understand, The motherboard has 3 bios options: IDE, AHCI, and RAID
mdadm shows only one active drive if I boot in IDE mode (which was the initial state when I booted up). If I boot in the other 2 modes (at this point anyway) it dumps me to a shell.
the one drive appears as hda and has 3 partitions.
At this point I'm unsure how to proceed. I hope it's still recoverable but I've been reading a bunch of different solutions out there, and the fact no /dev/sd links are here make me wonder what's going on.
I'll try to add more info once I'm back at the system, but wanted to ask for any advice about why the /dev/sd links are missing in the meanwhile.
Please let me know if you have any suggestions, thanks!