Ratsel Posted February 27, 2022 Share Posted February 27, 2022 I had to change my motherboard so moved to something with a little more PCI lanes and went with a supermicro board with an epyc 7401 from an x470/ryzen 2700X combo. When I eventually got everything booted however It's showing all my previous drives as Unmountable: Unsupported partition layout I've been through the repair process from the manual but it's still showing as Unmountable, and it found superblock errors on most of the drives which it allegedly repaired. I've attached diagnostics, yes I know one of the drives has crc errors that was from a previous bad cable almost a year ago. thanks for any help you can give. Robbie starbase1-diagnostics-20220227-2243.zip Quote Link to comment
JorgeB Posted February 28, 2022 Share Posted February 28, 2022 That's likely caused by the Adaptec RAID controllers, they've been known to change the MBR before, causing the errors you're seeing, solution is to rebuild one disk (or two with dual parity) at a time so Unraid can recreate the partitions, like this: https://forums.unraid.net/topic/84717-solved-moving-drives-from-non-hba-raid-card-to-hba/?do=findComment&comment=794399 Quote Link to comment
Ratsel Posted February 28, 2022 Author Share Posted February 28, 2022 So I would need to drop the drives back to unassigned in numbers based on my cache drives. Format said drive/s, then add them one/two at a time and the drive would be rebuilt? based on my numbers of cached drives. Even with all the drives shown as bad format - it has all the cache info on the parity drives As if I mark them all as unassigned it says too many missing discs I assume I also need to turn off scheduled cache rebuilds Quote Link to comment
JorgeB Posted February 28, 2022 Share Posted February 28, 2022 12 minutes ago, Ratsel said: So I would need to drop the drives back to unassigned in numbers based on my cache drives. No, based on the number of parity drives. 12 minutes ago, Ratsel said: Format said drive/s, then add them one/two at a time and the drive would be rebuilt? No, never format, read the link above. Quote Link to comment
Ratsel Posted February 28, 2022 Author Share Posted February 28, 2022 it doesn't allow the discs to mount at all in unassigned devices - it's just prompting me to format Quote Link to comment
JorgeB Posted March 1, 2022 Share Posted March 1, 2022 11 hours ago, Ratsel said: it doesn't allow the discs to mount at all in unassigned devices That's not what the link says to do, follow the steps below to test with one of the disks: stop array unassign one of the data disks start array post new diags. Quote Link to comment
Ratsel Posted March 1, 2022 Author Share Posted March 1, 2022 I've done this and I'm now seeing an emulated disc starbase1-diagnostics-20220301-2219.zip Quote Link to comment
JorgeB Posted March 2, 2022 Share Posted March 2, 2022 Since the emulated disk is mounting the partition was successfully recreated, now: -stop the array -re-assign disk4 -start array to begin rebuild Once that's done you need to repeat the process for all the other data disks, one at a time or two at a time since you have dual parity, also recommend replacing those controllers with recommended LSI HBAs ASAP. Quote Link to comment
Ratsel Posted March 2, 2022 Author Share Posted March 2, 2022 First drive is rebuilding - Thank you very much, it might take a while but at least I'm moving forward Quote Link to comment
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