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What is the detail boot process in linux? Start form Pc
on..?
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Answer Posted / frankie
I would like to add a few more points to the above answer:
When a system is powered on, first is the POST i.e Power on self test. BIOS loads the MBR from the disk into RAM. Here MBR is of 512 bytes, out of which 446 bytes has detail about bootloader information, 64 bytes has info about operating systems in the hard disk, 2 bytes has info about partition in the hard disk.
Further the bootloader is of 2 stages, 1st stage bootloader and 2nd stage bootloader. 1st stage initiates the 2nd stage bootloader and 2nd stage points to the sector of the operating system chosen from the bootloader list. Then the image file is loaded to RAM and goes further. ( Pls refer to the above answer after this)
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