Explain the boot process of Linux?

Question

Accepted Answer

The boot process of Linux involves several stages, including BIOS/UEFI, bootloader, kernel initialization, and system initialization.

The boot process starts with the BIOS/UEFI firmware, which performs a Power-On Self-Test (POST) and initializes hardware.
The bootloader (e.g., GRUB) is then loaded, which allows the user to choose the operating system and loads the kernel into memory.
The kernel initializes essential components, such as memory management, device drivers, and file systems.
Once the kernel is initialized, it starts the init process (systemd or SysVinit), which initializes the user space and launches necessary services and daemons.
Finally, the system reaches the default runlevel and presents the login prompt for the user to log in.

Accepted Answer

Bios,MBR,Grub,Kernel,init,runlevel

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