It should be noted that the upstream patch does not make it so you cannot enable a UEFI system. The patch works like this:
If the machine is found to be unsupported (i.e. is not added to the all.db file for supported or no-op), it then checks if the system is EFI and if it is, it prints a warning and exits instead of erroring out.
Thus, we can still have f-k for UEFI systems if the system is added as a supported device in all.db.
It should be noted that the upstream patch does not make it so you cannot enable a UEFI system. The patch works like this:
If the machine is found to be unsupported (i.e. is not added to the all.db file for supported or no-op), it then checks if the system is EFI and if it is, it prints a warning and exits instead of erroring out.
Thus, we can still have f-k for UEFI systems if the system is added as a supported device in all.db.