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UNMOUNTABLE: UNSUPPORTED OR NO FILE SYSTEM BTRFS


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Posted (edited)

Hello, I am having an issue with one of my array drives showing up as UNMOUNTABLE: UNSUPPORTED OR NO FILE SYSTEM. I plugged in a usb device (Mig Switch Dumper) that may have caused this. I rebooted and skipped parity check only to find some of my data was missing a few days later. I checked the Array and found the error message. I stopped and restarted the array and also rebooted. Here are the diags. Please help

image.thumb.png.71885e48a6cb61b96afbb180f06ea081.png

 

Edited by Coolin72
Posted

*Update* I ran sudo btrfs scrub start /dev/sdi1 and clicked Y to clear out log tree with the array offline.

 

Result:

 

No mapping for 10376300577106952192-10376300577106968576 Couldn't map the block 10376300577106952192 Couldn't map the block 10376300577106952192 bad tree block 10376300577106952192, bytenr mismatch, want=10376300577106952192, have=0 ERROR: failed to repair root items: Input/output error

 

Started array and the drive is mounted and back online. Looks like clearing the log tree fixed the issue?

 

 

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