Linux Boot Process description

During booting time of Linux operating system, boot process have to go through six basic stages. Boot Stage 1: BIOS Checks: When a Linux server or desktop or laptop booted, The processor goes for Basic Input/Output System or BIOS program and runs it.The BIOS controls does not controll only the first step of the boot process, but BIOS also provides the lowest level interface to peripheral devices. It means during the BIOS initialization, all hardware peripheral devices checked out by BIOS.