Linux booting process Step 1: Power Supply & SMPS ========================== * SMPS convert AC to DC . Convert High or Low voltage to perfect voltage and inform this power good signal to Motherboard * On receiveing this power good signal, Mother stops sending reset signal to CPU, which means the power level is good and computer can boot Step 2: Bootstrapping ===================== * Something has to be programmed so that the CPU knows where to search for instruction * This is an address location in last region of ROM (FFFF:0000h) and it contains JUMP instruction. * JUMP command is to jump in to another memory address location where the bios program is located. Step 3: The Role of BIOS in booting process ============================== ============= * The computer know how to bring itself up, when you press star button, because of the instruction that are fed to BIOS( basic input output system) it performs its most important function POST (Power on self test) * POST con