Unraid 6.9.2 does not boot non-gui

[Johan76]

So I have not updated my unraid server for quite a while due to the risk of something going wrong. 

 

Took the plunge and updated yesterday. 

Was on 6.6 something and upgraded to 6.9.2.

 

Of course it didn't boot. 😬

I'm on a headless server so always a pain to go and grab a monitor to hook up. 

 

First I realized it tried to boot from a connected USB drive. Made it simple for now and just remove it. 

 

USB stick started and I get to unraid menu selection. It defaults to non gui. Boots bzimage and then server reboots. It gets stuck in this loop. 

I tried non gui failsafe. Same problem. 

 

Now I was really worried. But gave unraid gui a chance. It booted up without a problem. 

 

bzimage is loaded in both cases so it is hard to think there are any problem with this file? 

 

Anyhow I changed gui to default boot option so now it works. 

 

But what could be the reason for non gui not booting and makes the server to reboot. 

 

I know I have not given any information about my hardware etc but tell me what info you need because I'm not sure what info is needed to be able to troubleshoot. 

 

Maybe it's something obvious that doesn't have anything to do with the hardware?