[Unraid Error - Unmountable: No pool uuid]

Fantastic, thank you @JorgeB, this has resolved my issue.

 

Appreciate your support here very much!

[Unraid Error - Unmountable: No pool uuid]

I certainly don't recall wiping any the the devices, they were removed from the cache pool, and then re-added without formatting.

 

root@Phobos:~# btrfs-select-super -s 1 /dev/nvme0n1p1
using SB copy 1, bytenr 67108864
root@Phobos:~# btrfs fi show
Label: none  uuid: 26e0b887-b92c-4df2-ae99-87f56a96103b
    Total devices 2 FS bytes used 79.43GiB
    devid    1 size 465.76GiB used 138.03GiB path /dev/nvme1n1p1
    devid    2 size 1.82TiB used 138.03GiB path /dev/nvme0n1p1

root@Phobos:~#

 

[Unraid Error - Unmountable: No pool uuid]

Hi @JorgeB, thanks for the prompt response, please see outputs below:

 

root@Phobos:~# btrfs-select-super -s 1 /dev/nvme1n1p1
warning, device 2 is missing
using SB copy 1, bytenr 67108864
root@Phobos:~# btrfs fi show
warning, device 2 is missing
Label: none  uuid: 26e0b887-b92c-4df2-ae99-87f56a96103b
    Total devices 2 FS bytes used 79.43GiB
    devid    1 size 465.76GiB used 138.03GiB path /dev/nvme1n1p1
    *** Some devices missing

root@Phobos:~#

 

[Unraid Error - Unmountable: No pool uuid]

Good morning all,

 

Hope you are well.

 

Earlier this morning I attempted to remove a cache drive from my pool, and then re-added it but after doing so I see the following error: Unmountable: No pool uuid

 

Any help would be greatly appreciated, as I don't want to attempt any further steps which might create an even bigger issue.

 

root@Phobos:~# btrfs-select-super -s 1 /dev/nvme1n1
No valid Btrfs found on /dev/nvme1n1
ERROR: open ctree failed
root@Phobos:~# btrfs-select-super -s 1 /dev/nvme0n1
No valid Btrfs found on /dev/nvme0n1
ERROR: open ctree failed
root@Phobos:~#

 

Thank you for your time!

phobos-diagnostics-20230124-0951.zip