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Custom bootloader that launches the GRUBbootloader

Posted: Thu Jun 14, 2012 10:23 am
by bbrar
Is this possible: Have a CD with a custom bootloader ( that does some BIOS PCI specific operations) and then it jumps to the actual bootloader in the MBR of the harddrive of the computer?So when the computer boots up, it is set to boot from CD and then it executes this custom BL and then the custom BL will load the actual BL stored in the MBR of the harddrive.
Will this work?

Re: Custom bootloader that launches the GRUBbootloader

Posted: Thu Jun 14, 2012 10:30 am
by Griwes
http://forum.osdev.org/viewtopic.php?p=211505#p211505

What are those "PCI operations" you want to do before GRUB is executed?