When you power on your system, you wait for some time and get Linux login prompt, there you enter your password and start your work. Do you ever think what happens when you power on your system ??????? Here I will briefly explain what happens in between power on and log in. Linux boot process explained in 6 stages. 1] BIOS [ Basic Input Output System ] After turning on the computer, the BIOS initialize the screen and keyboard and tests the main memory. Up to this stage, the machine does not access any mass storage media. Subsequently, the information about the current date, time, and the most important peripherals are loaded from the CMOS values. BIOS looks for boot loader in floppy, cd-rom, or hard drive. Once the boot loader program is detected it loads boot loader into the memory, and B...