Accessing logs, random crashes, jellyfin server hosting

Hello, I have just recently installed Zima OS just to host Jellyfin. I have problems with random crashes of the system. It works normaly and then just stops, after I have to restart it physical just to get it started again. How can I access startup logs or any logs just to see what happens? Im a total beginner at this, thank you for help.

Random freezes usually leave something useful in the system logs, even if the UI becomes unresponsive. You can check them directly from the ZimaOS terminal.

First, access the terminal (either via SSH or the local console), then run these commands:

To see the last system boot and crash-related messages:

journalctl -b -1 -p err

To view logs from the current boot:

journalctl -b

To specifically check Jellyfin logs:

docker logs jellyfin --tail 200

If the system hard-locks (no SSH, no UI), it’s often hardware-related. Common causes are:

  • Overheating (CPU or iGPU under Jellyfin load)
  • Power supply instability
  • Faulty RAM
  • Disk or NVMe errors

You can quickly check for hardware errors with:

dmesg | grep -i error

If you can, also note whether crashes happen during playback or idle. That detail helps narrow it down fast.