The Linux boot process is a critical sequence that initializes a Linux system from a powered-off state to a fully operational state.
Remembering the Linux boot process can be simplified by using the acronym Best Geeks Know It (BGKI) which stands for BIOS, GRUB, KERNEL, INIT.
Detailed steps within BGKI include BIOS/UEFI performing POST, loading MBR or GPT, transferring control to bootloader, GRUB reading configuration, loading kernel and initramfs, KERNEL initializing hardware and drivers, and INIT (systemd) starting essential services.
Key files to remember include /boot/grub/grub.conf for GRUB configuration, /etc/systemd/system/ for systemd unit files, and /etc/inittab for init configuration in traditional systems.