FEX on switchroot ubuntu 24.04

[TommyGx]

Hi there.

So i try to get this to run on my nintendo switch 1. I try to get a game to run that's a bit niche (Bombergirl). It worked under box64 with wine from the pi-store. This is all at the moment just to see what's possible with the switch 1. This is why i wanted to give it a try with FEX and wine_ge proton

It's L4T Ubuntu 24.04 Noble Unity version

I tried it with the FEXscript from L4T Megascript:

bash <(curl https://raw.githubusercontent.com/cobalt2727/L4T-Megascript/master/helper.sh) "scripts/FEX.sh"

Apart fom these messages in the script

[0/2] Re-checking globbed directories... ninja: error: unknown target 'binfmt_misc_32', did you mean 'binfmt_misc'? 
[0/2] Re-checking globbed directories... ninja: error: unknown target 'binfmt_misc_64', did you mean 'binfmt_misc'?

It compiles and installed succesfully, but it doesn't work. I can start "FEXConfig" for example, but i can't run anything, i always get the message

Illegal instruction (core dumped)

So i purged everything again and tried the official method, with the same result sadly. Here at least you can see when it tries to run a normal binary, it exits with

FEX is now installed. 
Trying basic program run 
FEX failed to run. Not continuing

And when i try to run something again, i get the same error message with "illegal instruction, core dumped"

Is there maybe something easy i missed to do, or is it something else? If i can help by providing any log or something, please tell me where to find that.

[Sonicadvance1]

Your kernel on your device is too old. The SIGILL that you're getting is from FEX querying some system registers which needs a newer kernel version. We require kernel version 5.15 minimum.

[TommyGx]

Oh okay that explains it then 😂

Thank you very much for the quick help, i'll try if i can upgrade it or if i need to wait for the next release.

[Sonicadvance1]

I'll make sure to add a kernel version check to FEX's upstream install script. The L4T people would need to do the same for whatever their mega script does.

[TommyGx]

That's a great idea. I'll try to communicate it to the maintainer in his discord when you did that.