PC bootup. Presented by: Rahul Garg (2003CS10183) Rajat Sahni (2003CS10184) Varun Gulshan(2003CS10191). From power on to Kernel load. PC firmware or BIOS. bootSect.S / Bootloader. Boot loader to kernel. Memory Map at Power up. FREE SPACE. 0x100000. MAPPED TO ROM. 0xA0000.
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Presented by: Rahul Garg (2003CS10183) Rajat Sahni (2003CS10184) Varun Gulshan(2003CS10191)
Jumps to init
Compressed kernel image
In the beginning, there was GRUB
And GRUB loaded the kernel
And kernel begat init
And init begat rc
And rc begat network and httpd and getty, And getty begat login, and login begat shell and then there was light…..
EFI Abstracts out hardware for OS loaders
OS Loader is a special ELF binary which calls ExitBootServices()
which transfers control to the OS. Elilo is an example of an EFI
Compliant boot loader which can load linux kernel.
EFI Boot Mgr