what am i doing wrong?

[fgxr8]

I created a big big sur install usb

system is 9900kf, z390f mobo, i also have a bcm94360cd wifi card which i know might be cause of some issue?

getting this error after it copies files and restarts.

 

[gt306]

What are you using as a boot loader? I'm new to this stuff, but i think you have some ssdt's missing in your efi.

 

[esafeddie]

I created a big big sur install usb

system is 9900kf, z390f mobo, i also have a bcm94360cd wifi card which i know might be cause of some issue?

getting this error after it copies files and restarts.

Your config.plist needs cleaning up, remove/delete 'warnings 1 to 4' as instructed by the OC Guide. You need to read the Guide as to what is required for a successful install and Bootup. If possible find another member with similar specs as yours with a successful build and follow their method or ask to see their EFI Folder. Good research is the key. Good luck.