This one looks pretty good, for all the terms you list. It's refreshingly free of opinionating and just covers the technicalities and the history in a straight

This one looks pretty good, for all the terms you list. It's refreshingly free of opinionating and just covers the technicalities and the history in a straightforward manner, and has links to good wiki overviews of EFI etc, compares the BIOS vs UEFI boot processes, and so on: https://en.wikipedia.org/wiki/GNU_GRUB https://en.wikipedia.org/wiki/GNU_GRUB Incidentally I discovered you can learn a fair amount about the boot process by making bad edits to your /etc/fstab file on a Linux system :) e.g. https://unix.stackexchange.com/questions/107828/how-is-etc-fstab-accessed-before-root-is-mounted https://unix.stackexchange.com/questions/107828/how-is-etc-f... Also this central page for different bootloaders for a variety of systems, is kind of interesting, there's many different approaches. https://en.wikipedia.org/wiki/Comparison_of_bootloaders https://en.wikipedia.org/wiki/Comparison_of_bootloaders