Describe the process of loading a Linux server from startup to terminal launch.
sobes.tech AI
Answer from AI
The process of loading a Linux server can be divided into several stages:
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BIOS/UEFI — when power is turned on, BIOS or UEFI starts first, initializing hardware and searching for a boot device.
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Bootloader — for example, GRUB. It loads the Linux kernel into memory and transfers control to it. The bootloader may offer a menu to select the kernel or OS.
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Linux Kernel — after loading, the kernel initializes hardware, mounts the root filesystem, and starts the init (or systemd) process.
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Init/Systemd — this is the first process in user space, which starts all other services and daemons necessary for the system to operate.
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Starting services and terminal — systemd starts services, including getty, which opens a terminal (tty) for user login.
As a result, after successfully starting all services, you get a command line prompt (terminal) for interacting with the system.