May 2023
Intermediate to advanced
800 pages
19h 12m
English
In this chapter, you will learn about
• The BIOS power-on self-test phase
• The GRUB2 bootloader phase
• The kernel initialization phase
• The System V initialization phase
• The systemd initialization phase
You can’t be a leader if you turn around and there’s no one there.
—April Walker, Microsoft
When you power on your Linux system, it goes through four major steps to start processes and display the login screen:
• The BIOS power-on self-test (POST) phase
• The GRUB2 bootloader phase
• The kernel initialization phase
• The systemd initialization phase (formerly System V initialization)
Figure 11-1 illustrates the boot process after powering on the Linux system. Boot-specific messages ...