Booting from a Linux installation disk with a newer graphics card might trigger an "Unknown Chipset" error from nouveau.
Add nomodeset nouveau.modeset=0
to the kernel options to fix it.
In UEFI Boot Mode it might also hang at "Triggering uevents", which is the same issue without the error message.
HOLY FRICK IT WORKED I'VE BEEN TRYING SO LONG, THANK YOU