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Main Array Single ZFS Disk 1 - Unmountable: wrong or no file system

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I was wondering if someone has had the same problem or are able to help with this problem. This has happen in the last week or so, after I upgraded to Version. 7.0 this may not connected. I also had a problem with one of my cache disks, which I was able to bring back online myself.

Screenshot2025-02-20153950.thumb.png.54403cf7dbde67d280ebe0d746514b8b.png

I have tried "zpool import", "zpool import disk1".

Screenshot2025-02-20154535.png.13088445967cc0bb4584d0341e92f9d8.png

I have replaced disk 1 and rebuild array once, At this point, I didn't to format this disk because possible loos of data.

image.thumb.png.b4644a348ec3aeeff9da86c219b616d1.png

I am not sure what to do for the next step? I would like to keep the data on the array if possible.

unraidbox-diagnostics-20250221-1107.zip

  • Community Expert

Try importing read-only

 

zpool import -o readonly=on disk1

 

  • Author

Hi JorgeB,

I wasn't sure if the array had to stopped/started, but it made no difference to the result.

image.png.e4f3444e452a057c5e94062e859bfcf8.png

  • Community Expert

If read-only mode doesn't work, best bet is to reformat and restore the data from a backup, if no backup is available, you can try a file recovery app, like UFS explorer.

  • Author

Thanks for all help, JorgeB

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