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unRaid won't fully start after update to 7.3.1

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I've had a stable server (with occasional issues) for years. For some unknown reason, I decided to kick the hornets' nest today and upgrade. I believe I was 6 versions behind (7.2.1?). After the update, the GUI didn't launch. I can ping the machine and found I can still SSH into it. The SFTP server works as well (diagnostics attached).

I SSHed in and saw the NGINX server wasn't running. I manually started it and it appeared to load without error. I then got a 500 error instead of refused connection and found that PHP wasn't running. I started that too and it gave me the login screen. Another 500 error after "successful" login. Looks like libvert isn't running either but that won't start.

Can some good Samaritan help me recover my access?

nas-diagnostics-20260619-0621.zip

Solved by JorgeB

  • Community Expert
  • Solution

Flash drive problem, 7.3.x is more strict witht he flash drive partition layout, easiest way to fix is to backup the flash drive, recreate it with the USB tool and 7.3.1, restore only the config folder from the backup.

  • Author

Thanks. Since I don't have GUI access to use the backup, I created a backup via CLI using

tar -C /boot -zvcf /tmp/unraid-flash-$(date +%Y%m%d).tgz --exclude config/super.dat --exclude 'previous*' --exclude 'bz*' --exclude "System Volume Information" .

and copied it via FTP. Just making sure I have what I'd need before nuking it. This stuff gives me sweaty palms.

Edit: Oh yeah, this drive is least 10 years old. Never had an issue with it, but not sure if I'm tempting fate at this point. Should I replace the drive while I'm at it or better to try to get things stable with the existing drive before investigating the drive replacement process?

Edited by Crlaozwyn

  • Community Expert

Why would you exclude config/super.dat from flash backup?

  • Author

I have no idea. I asked chatGPT how to backup from the CLI because everything I could find quickly here used the gui. I'll just uh... run another one without that exclusion. Thanks for helping a bonehead not blow his crap up more :)

  • Community Expert

FYI config/super.dat is your array disk assignments.

  • Community Expert

Make sure to copy the complete /config folder.

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