January 28, 20251 yr On reboot it told me the cache drive INTEL_SSDPEDMD020T4_CVFT4346004G2P0EGN (nvme0n1) was an unmountable disc present. I've since done some reading on forums about the Cache Drive Unmountable: unsupported or no file system problem. I tried the step 1 & 2 listed here in JorgeB post but systems not seeing it in the webterminal 2) BTRFS restore (safe to use) method root@Jessie:~# btrfs restore -v /dev/nvme0n1 /mnt/disk13/restore No valid Btrfs found on /dev/nvme0n1 Could not open root, trying backup super No valid Btrfs found on /dev/nvme0n1 Could not open root, trying backup super No valid Btrfs found on /dev/nvme0n1 Could not open root, trying backup super root@Jessie:~# btrfs restore -v /dev/nvme0n1p1 /mnt/disk13/restore No valid Btrfs found on /dev/nvme0n1p1 Could not open root, trying backup super No valid Btrfs found on /dev/nvme0n1p1 Could not open root, trying backup super No valid Btrfs found on /dev/nvme0n1p1 Could not open root, trying backup super root@Jessie:~# Pls help me understand what to do before going to the unsafe step 3. I'm out of my element here. I attached the diagnostics. jessie-diagnostics-20250127_1510.zip Edited January 28, 20251 yr by skwisgaar
January 28, 20251 yr Community Expert The pool is encrypted, so you must decrypt it before trying btrfs restore, but since btrfs is detecting data corruption, I would recommend running memtest first.
January 30, 20251 yr Author Alright I ran a memtest 2ish days. it had no errors. How does one decrypt a pool with out mounting it? Is there any guides to follow?
January 31, 20251 yr Community Expert You can start the array, the pool will be decrypted but fail to mount, you can then run the commands on /dev/mapper/nvmeXn1
February 1, 20251 yr Author Solution Okay I think I got it to copy the data off the nvme0n1 to disk13 with this: btrfs restore -v /dev/mapper/nvme0n1p1 /mnt/disk13/restore now that the data is recovered to disk13 do i format the nvme0n1 drive & move the data back on to it? That is what I assume but I'm asking all the same so I can write procedure if this happen again. Edited February 1, 20251 yr by skwisgaar
February 1, 20251 yr Community Expert 3 hours ago, skwisgaar said: now that the data is recovered to disk13 do i format the nvme0n1 drive & move the data back on to it? Correct
February 2, 20251 yr Author I was able to get the data back so I'll mark what we did as the solution. but I'm having trouble restoring the appdata & getting my docker containers go back to a working state. but I'll make another thread for that issue. Thanks for the help.
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