November 8, 20232 yr Hey all. Recently had a hard freeze of my unRaid server which prompted a hard reboot to recover. Upon restarting, I'm getting: Unmountable: Unsupported or no file system I've done some searching and tried following some of the (numerous) guides from previous threads, but every recovery step or test I take just ends up with "No valid Btrfs found on /dev/sdd ERROR: cannot open file system". This is the second time this has happened recently, so I'm assuming hardware fault (likely RAM), so will get that looked at ASAP. The previous time I was able to successfully recover my data onto another disk and then format and rebuild the file system. However, this time I don't seem to be so fortunate. I've attached my diagnostics to the thread. I'm a bit of a Linux noob so any help is hugely appreciated, as I'm a little bit lost as to whether I can recover anything from this or if it's cooked. tower-diagnostics-20231108-1641.zip Edited November 8, 20232 yr by NoobieElf Added clarity.
November 8, 20232 yr Community Expert Solution If the log tree is the only problem this may help: btrfs rescue zero-log /dev/sdb1 Then re-start the array
November 8, 20232 yr Author 12 hours ago, JorgeB said: If the log tree is the only problem this may help: btrfs rescue zero-log /dev/sdb1 Then re-start the array Amazing, that worked! Thankyou Do you have a paypal link so I can flick you a coffee for saving me a lot of headache?
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