Excited to share insights into the Linux boot process!
Blog post by vibhor guptaUnderstanding what happens behind the scenes when you power up your computer is crucial.
Let's dive into the key stages:
đĽď¸ **Booting Process Overview**
Gain insights into the Linux booting process and learn about the roles of BIOS and UEFI in preparing computer hardware.
âď¸ **BIOS vs. UEFI**
Explore the differences between BIOS and UEFI, understand UEFI advantages like faster boot times and enhanced security, and recognize BIOS limitations, tied to the MBR system with a 2TB disk size limit.
đ§ **Power-On Self-Test (POST) and Boot Loader**
Delve into the Power-On Self-Test (POST) and its significance, get an overview of the boot loader's role in locating and loading the operating system kernel, and understand the boot order and customization options in BIOS settings.
đ **Boot Loaders: LILO and GRUB2**
Meet common boot loaders LILO and GRUB2, learn about LILO's limited use, and explore GRUB2's versatility in handling multiple operating systems along with its advanced features and options.
đ§ **Kernel Initialization**
Understand the kernel's role in initiating background processes and services, explore the decompression process, hardware checks, and loading of device drivers, and learn how GRUB2 hands control over to the kernel to complete the startup process.
đ ď¸ **Systemd and Init Process**
Discover the init process, particularly Systemd in modern Linux systems, and understand Systemd's responsibilities, such as handling hardware drivers, mounting file systems, and launching background services, replacing older init systems like SysVinit and Upstart.
đŻ **Systemd and Boot Targets**
Learn about Systemd's role in user logins, launching desktop environments, and handling graphical prompts, and understand how Systemd uses target configuration files to determine boot modes.
đ **Final Steps in Booting**
Get an overview of the final steps in the booting process handled by Systemd, understand Systemd's involvement in configuring different boot modes through target configuration files, and rec
ap the entire sequence transforming computer hardware into a functional Linux system.
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