[Help] 502 Bad Gateway after reboot [SOLVED]

[Nikdfish]

I just got bit by the backup configuration bug on the second day after getting my F2-423. I am running TOS 6.0.763-00165 wih an SSD as volume 1. Shortly after doing a configuration backup I got the "user does not exist" on trying to login with any userid. I tried a reboot from the front panel. After the restart, attempted TNAS PC logins failed with "connection timed out" messages. I got the "502 bad gateway" after trying access via the TNAS IP.

Using SSH for access, deleting /etc/p per the above & rebooting got things running again. Thanks for this post!

I wish I could put a big red x over the "backup configuration" option until things get fixed. Maybe there should be a bold print warning posted to not use that option until it gets fixed.

Nick

[OrionXie]

Mr. Thank you for your suggestions. I will relay them to the product manager. However, I believe you are running TOS version 6.0.673, right?

[marthylm]

Last system update 6.0.694 is available.
Once installed, i can now safely create a system config backup without any full disk issue.
At least, we didn't wait too long for the fix, good point for Terramaster.

[Nikdfish]

Mr. Thank you for your suggestions. I will relay them to the product manager. However, I believe you are running TOS version 6.0.673, right?

Yes, 6.0.673, I transposed numbers when I typed it.

I will update to 6.0.694.

[OrionXie]

Thank you for your feedback, have a great day.

[zeleny]

May be it can be helpful for somebody...
Symptoms

• TerraMaster web interface returns 502 Bad Gateway error.
  SSH access is available.
  TOSDaemon service repeatedly fails to start.
  PostgreSQL refuses to start due to disk space error (No space left on device).

Diagnosis Steps

Check disk usage:

Code: Select all

df -h

Found root partition ( my problem were on /dev/md9) 100% full.
Identify large directories on /:

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du -h --max-depth=1 /

Resolution

Free up space on the root filesystem
After freeing space, restart PostgreSQL and TOSDaemon services:

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sudo systemctl restart postgresql
sudo systemctl restart TOSDaemon

Verify web interface availability.

[Abelnicholas]

Just chiming in with a similar experience.

I had the same "502 Bad Gateway" issue after a reboot a few months back. In my case, it turned out that one of the apps I had installed didn’t restart properly and was blocking access to the web interface. I was able to SSH into the NAS and stop the problematic service, then everything came back online.

That said, I agree with others—if you're not familiar with SSH or the Linux side of things, it’s best not to poke around too much. TerraMaster support was actually pretty responsive when I submitted a ticket, and they walked me through the recovery steps safely.

Also seconding what others said about backups—learned that the hard way.

Hope your system gets back up and running soon!

[redpillmurica]

There are plans to optimize it in future versions

Okay, that's great! Can you share when this will occur? Saying soon or the next version isn't really helpful. A timeline would be more helpful, for example, this quarter, next quarter, or next year.

I just bought my F8 SSD Plus and have been unable to use it because of this issue. My return window is closing, and a timeline would affect my decision to keep or return.

[OrionXie]

Hello, the issue mentioned above has been resolved in the latest version of TOS 6.0.694, which we released yesterday afternoon on the forum. Please refer to the first update in the following link: viewtopic.php?t=8336

[princev]

I have this same issue on my F4-423 and it occurred after backing up configuration as well. I now can't login to TOS due to 502 error nor the TNAS as it times out when I try to log in. I did not set up SSH, so do I need to unplug drives and reinstall the OS? I really don't want to lose any data if at all possible. I tried plugging the NAS to a monitor via HDMI, but that doesn't seem to produce an image on the screen. It's been a couple of days restarting and trying to access TOS without any luck. Can someone give me steps to fix?