Linux boot process

In this topic we will discuss indepth of Linux Boot Sequence.How a linux system boots?
This will help unix administrators in troubleshooting some bootup problem.
Before discussing about it I will notedown the major component we need to know which are responsible for the booting process.


        1.BIOS(Basic Input/Output System)

        2.MBR(Master Boot Record)

        3.LILO or GRUB

AIX Boot Process

Three phases available in BOOT Process1. Ros kernel init phase2. Base Device Configuration3. System boot phase1. Ros Kernel init phase (PHASE1)A. Post (power on self test)In this post it will do basic hardware checkingB. Then it will go to NVRAM and check the boot list for last boot device (hdisk0 or hdisk1).C. Then it will check the BLV (hd5) in boot device.D. Then it