I've been trying to upgrade to 7.2.3, but kept getting an error indicating that my USB flash drive is likely failing. I upgraded to a new SD Card/USB Reader, transferred the license, and everything seemed to be working fine.

I ended up upgrading to 7.2.3, but then when I tried to start the array, all my dockers disappeared. My cache drive is now showing as unmountable. I tried stopping the array, removing the cache, starting, then stopping and adding the drive again, with no luck. I also tried a suggestion from fix common problems while running the array in maintenance mode, and got the following error:

mount -o rescue=all,ro /dev/sde1 /temp

mount: /temp: wrong fs type, bad option, bad superblock on /dev/sde1, missing codepage or helper program, or other error.

dmesg(1) may have more information after failed mount system call.

Any help would be really appreciated.

tower-diagnostics-20251222-2136.zip

Post the output from

btrfs fi show

and

fdisk -l /dev/sde

and

blkid /dev/sde1

This is what I get when the array is started:

The device has no partition. Any idea how that happened?

If it's just the partition missing, and the device wasn't wiped, it may be recoverable.

Type sfdisk /dev/sde and then type 2048 and hit enter and post the output; don't type anything else for now.

I have no idea how this happened. I was using my dockers just fine earlier in the day. Restored my flash drive backup to the new drive, installed it, started the array, everything was fine. After the upgrade to 7.2.3 I started having this issue.

This what I get when executing the commands above:

Certainly not the update; it could have been the reboot

Type N and enter to keep the signature, then type write and enter to save the changes, and post again the output from btrfs fi show

Thanks for the help. Here's what it's showing:

Now reimport that pool

on main click on the first device for that pool and then "remove pool"

back on main, create a new pool with the same name and 1 slot

assign the pool device, leave the filesystem set to auto

start the array to import the pool and post new diags

That worked! Thank you so much. The cache drive is visible again and I'm able to access my dockers. Not sure if anything else is broken along the way, but uploading the diagnostics for reference.

Happy holidays and appreciate the help on this.

tower-diagnostics-20251224-1343.zip

Looks OK, but btrfs is detecting some data corruption on the pool. Recommend scrubbing it and also running memtest