Chapter 2 – Linux Boot Process (BIOS, POST, GRUB, Kernel, initramfs, systemd)

Published: 20 April 2025
on channel: TechBlox

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Chapter 2 – Linux Boot Process (BIOS, POST, GRUB, Kernel, initramfs, systemd)

Welcome to Chapter 2 of the DevOps Course!
In this episode, we walk through the *Linux Boot Process* — from the moment you power on your system to when you see the terminal or desktop.

🔍 This chapter covers the following topics:
BIOS and UEFI
The role of POST (Power-On Self-Test)
How GRUB works
Why `initramfs` is critical and how it compares to `initrd`
What the Linux kernel handles during startup
How systemd (PID 1) takes over and brings the system to life

🎥 *Previous Video:* • Chapter 1 – History of Linux (Kernel, File...

#DevOps #LinuxBootProcess #LinuxForBeginners #GRUB #systemd #initramfs #devopscourse #linux #devopscourse

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