July 4, 20179 yr I will start with the fact that the issue I have is completely my fault. Now that I got that out of the way I will see if there is any recovery. I read that the file system used by UnRaid can be ready by any common OS. I therefore assumed I could mount a disk with data on it (I now know how to using unassigned devices). SO I started UnRaid, selected the disk with existing data on it (ext4 I think) and tried to start the array. I was then only presented with the option to format which is when I realized I was in trouble (I did not proceed with the format). I stopped the whole process and rebooted with recovery Ubuntu, then tried disk recovery tools, etc. Just by mounting the disk it seems no other OS can recognize it at all. Even if I scan it to try and recover it I get nothing. Again, I did not format. Is there any way to read the disk?
July 5, 20179 yr This account of what happened is confusing. UnRaid does not use ext4. UnRaid disks are either rfs, xfs, or btrfs. If you had an ext4 disk that was formatted with unassigned devices and had data on it, and you tried to add it to the unRaid array, if would probably want to zero the disk, which would take a long time and render the disk completely empty of any data. Please give a more detailed account of what actually happened, and what you are wanting to accomplish now.
July 5, 20179 yr Community Expert unRAID will rewrite the partition of any array disk, your data is still there, you just need to fix the partition, I believe Testdisk was used by others in a similar situation with success.
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