Booting Process in Linux

 What is booting process?

Basically how system starts and we get GUI is called as booting process.

1.BIOS/UEFS

BIOS is a Basic input and output system.

UEFS is a unified extensible firmware. 

2. Master Boot Loader

It has the total size of 512 kb.

    446 kb for boot loader

    64  kb for partition table

    2 kb for future reserved

3. Boot Loaders

Boot loader in RHEL8 and RHEL9 is grub2. It has location of kernal.

GRUB2 is stand for Grand Unified Boot Loader.

4.Kernal 

Kernal loads in system and take command of systems.

5.Systemd

This is the first process of linux system.

6.Targets

Simply target means user console(GUI/CLI)