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Unmountable wrong or no file system, may have accidentally deleted appdata folder

Featured Replies

I'll probably will get a lot of flak for this.  I'm a rookie with NAS and Unraid, so I deserve it.  

Recently had a corrupt JellyFin docker and kept trying to uninstall/reinstall it, but with no success.  It was a local db issue for JF.  I thought I could go into the appdata folder and just delete the JellyFin folder in it.  After doing that, my drive was unmounted and it's not recognizing anything. It's asking to format the drive when mounting, but I know not to do that.  I rebooted so I don't have the logs anymore.   I don't know where to go anymore.  Thinking of pulling the drive out and trying to recover undeleted files but that's going to take days.  

Any suggestions or advice is very much appreciated.  Again new guy so asking for patience and grateful for any help.

Screenshot 2025-03-04 124458.png

Screenshot 2025-03-04 124529.png

Solved by trurl

  • Community Expert

Don't do anything without further advice.

 

Attach Diagnostics to your NEXT post in this thread.

  • Community Expert

Start array in normal (not maintenance) mode and post new diagnostics.

  • Author

Interesting.  Didn't realize there was this option.  Ran the Check Filesystem.  Output below.  Message "File system corruption detected." received with a Fix button active.  Didn't press it bc I'm too new at this and know better.


 

Phase 1 - find and verify superblock...
Phase 2 - using internal log
        - zero log...
ALERT: The filesystem has valuable metadata changes in a log which is being
ignored because the -n option was used.  Expect spurious inconsistencies
which may be resolved by first mounting the filesystem to replay the log.
        - scan filesystem freespace and inode maps...
agi unlinked bucket 53 is 295964853 in ag 9 (inode=19623317685)
agi unlinked bucket 54 is 295964854 in ag 9 (inode=19623317686)
agi unlinked bucket 60 is 250272188 in ag 9 (inode=19577625020)
agi unlinked bucket 57 is 9709625 in ag 8 (inode=17189578809)
agi unlinked bucket 58 is 372999674 in ag 8 (inode=17552868858)
agi unlinked bucket 59 is 372999675 in ag 8 (inode=17552868859)
agi unlinked bucket 60 is 372999676 in ag 8 (inode=17552868860)
agi unlinked bucket 61 is 372999677 in ag 8 (inode=17552868861)
agi unlinked bucket 62 is 372999678 in ag 8 (inode=17552868862)
agi unlinked bucket 63 is 372960831 in ag 8 (inode=17552830015)
sb_ifree 381, counted 582
sb_fdblocks 375012556, counted 431105891
        - found root inode chunk
Phase 3 - for each AG...
        - scan (but don't clear) agi unlinked lists...
        - process known inodes and perform inode discovery...
        - agno = 0
        - agno = 1
        - agno = 2
        - agno = 3
        - agno = 4
        - agno = 5
        - agno = 6
        - agno = 7
        - agno = 8
imap claims in-use inode 17189578807 is free, would correct imap
Metadata corruption detected at 0x46c248, xfs_dir3_leafn block 0x419f7be60/0x1000
corrupt directory leafn block 8388610 for inode 17548883125
        - agno = 9
data fork in ino 19577625021 claims free block 2444335180
        - agno = 10
        - process newly discovered inodes...
Phase 4 - check for duplicate blocks...
        - setting up duplicate extent list...
unknown block state, ag 9, blocks 28415906-28416041
        - check for inodes claiming duplicate blocks...
        - agno = 0
        - agno = 1
        - agno = 2
        - agno = 3
        - agno = 8
        - agno = 6
        - agno = 5
        - agno = 7
        - agno = 9
        - agno = 4
        - agno = 10
Would clear next_unlinked in inode 17189570106
Would clear next_unlinked in inode 17189578810
Would clear next_unlinked in inode 17334349886
Would clear next_unlinked in inode 17334349887
Would clear next_unlinked in inode 17337819838
Would clear next_unlinked in inode 17337819839
Would clear next_unlinked in inode 17548886779
Would clear next_unlinked in inode 17548886780
Would clear next_unlinked in inode 17549853566
Would clear next_unlinked in inode 17552830011
Would clear next_unlinked in inode 17552830015
Would clear next_unlinked in inode 17552868858
Would clear next_unlinked in inode 17552868859
Would clear next_unlinked in inode 17552868860
Would clear next_unlinked in inode 17552868861
Would clear next_unlinked in inode 17552868862
Incorrect reverse-mapping: saw (9/28415906) len 136 owner 19577625021 off 0; should be (9/28416076) len 136 owner 19577625021 off 0
No modify flag set, skipping phase 5
Inode allocation btrees are too corrupted, skipping phases 6 and 7
No modify flag set, skipping filesystem flush and exiting.


 

  • Community Expert
  • Solution

That doesn't look too bad. Go ahead with Fix button.

  • Author

OMFG, thank you, mate!  You saved me from days of anxieties!  Mount successful.  Shared folders are back online.  Verifying files now, but spot checking they're back.  Looks like my dockers wonkey but I reather rebuild those than lose my files.  

Will be sending you appreciation soon.  

  • Community Expert

Post new diagnostics, or you can just check your User Shares to see if you have a lost+found share now. You can click Compute... for a share to see how much is in it.

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