[izacus]

> Below UEFI is the BIOS, or the firmware formerly known as the BIOS. There is a project to make an open source firmware for PCs: https://www.coreboot.org. It works on a selection of newish motherboards.

This simply isn't true - while UEFI firmwares do offer BIOS emulation, there's no "BIOS" underneath them on most modern boards.

[XMPPwocky]

They might mean the "meta-bootloader" which brings up all those UEFI capsules- afaik Intel's boot ROM doesn't, for example, parse PE headers.