This will be my last foray into UEFI firmware for quite a while. For those who are already tired of my writing about it, I apologize in advance; for those who have asked for more, here it is. For the ...

EFI, the Extensible Firmware Interface, is the firmware layer that initializes hardware before Windows loads. It checks CPU, RAM, storage, and peripherals, then hands control to the operating system.

Secure Boot is a feature of your computer's UEFI that only allows approved operating systems to boot up.

Let's start by clearly stating what this post is, and what it isn't. It is a description of how I set up multi-boot for Linux systems, sometimes including Windows, using the GRUB bootloader. It is not ...