All drives unmountable after change of motherboard

[Ratsel]

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

[JorgeB]

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

 

[Ratsel]

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

[JorgeB]

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.

[Ratsel]

it doesn't allow the discs to mount at all in unassigned devices - it's just prompting me to format

 

 

[JorgeB]

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.

[Ratsel]

I've done this and I'm now seeing an emulated disc

 

starbase1-diagnostics-20220301-2219.zip

 

 

[JorgeB]

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.

[Ratsel]

First drive is rebuilding - Thank you very much, it might take a while but at least I'm moving forward