Skip to content
View in the app

A better way to browse. Learn more.
Unraid

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.
Unraid Summer Sale in live: 20% off Starter and Unleashed + buy one, get one 50% off

Disk unmountable after New Config - All data missing

steved411
in General Support

Featured Replies

So long story short,  I had a cable issue with my drives and Disk1 became unavailable.  I fixed the cable and nothing I could do would bring it back online with Disk 1, so I made it unassigned and brought it up as disk2.  Everything was fine, Parity and Disk2 working great, disk 1 showing not available which lead me to the next thing.   The array health was always degraded due to disk 1 being missing, so I found the wiki online saying how to build a new config and reassign the disks again.

 

I did new config, no options checked and then assigned my Parity back and my disk 1 back and selected don't verify parity -> start array, came online and "Total" - Array of two devices was showing 0GB used.  Then I noticed disk 1 was unmountable. 

 

I've tried doing a xfs_repair (xfs_repair -n /dev/md1) and it said:

 

Phase 1 - find and verify superblock...
bad primary superblock - bad magic number !!!

attempting to find secondary superblock...

 

It's been running for 4 hours now... I've seen other posts saying minutes to maybe half an hour. 

 

I'm still new to unRAID, so I'm not sure of next step to take here.   I did run a smart check on the drives, which returns OK. 

 

I'm running unRAID 6.3.5.  Please let me know any info I can share.

 

Thanks for you time and help!

 

  • Quote
    • Community Expert

    Not really following everything you did, but start by posting your diagnostics (tools -> diagnostics).

  • Quote
    • Author

    xfs_repair finally finished with "Sorry, could not find valid secondary superblock Exiting now"

     

    Attached is main screenshot and diag 

     

    Thank you!!!

     

     

    EDIT: Also, I did reboot - I didn't realize the logs would be removed when I did that.  I tried rebooting just to see if that would fix it.


     

    Screen Shot 2017-09-03 at 8.59.03 AM.png

    tower-diagnostics-20170903-0859.zip

    Edited by steved411

  • Quote
    • Community Expert

    Whatever you did to end up like this I don't see how you can recover the data, there's no a valid superblock, without it the disk won't mount, also xfs_repair can't even find a backup superblock, maybe a file recovery program, but if there are no superblocks I doubt there's any data.

  • Quote

    • Archived

    This topic is now archived and is closed to further replies.

    Go to topic listing

    Account

    Navigation

    Search

    Search

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.