When it comes to IT, Git cannot be ignored... even for infrastructure guys!
The Boot - starting process - The BIOS is started automatically and detects the peripherals. - Loads the boot routine from the MBR (Master Boot Record) - it is the boot disk, located on the first sector of the hard disk. - The MBR contains a loader that loads the "second stage loader": this is the "boot loader" specific to the system being loaded. -> Linux uses LILO (Linux Loader) or GRUB (Grand Unified Bootloader). - LILO loads the kernel into memory, decompresses it, and passes it the parameters. - The kernel mounts the `/` filesystem (from there, the commands in `/sbin` and `/bin` are available). - The kernel runs its first process: `init`. LILO is a legacy bootloader (obsolete), superseded by GRUB and now GRUB2. The LILO section below is kept for historical reference. LILO configuration LILO can offer several kernels as choices. The default choice: “Linux”. /etc/lilo.conf : configuration of the kernel parameters. /sbin/lilo : to write the new parameters to disk. -> creates the /boot/map file, which contains the physical blocks where the boot program is located.