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Re: Boot specified cd kernel from rescue floppy


From: Sam Liddicott
Subject: Re: Boot specified cd kernel from rescue floppy
Date: Fri, 17 Aug 2012 16:28:00 +0100


On Fri, Aug 17, 2012 at 12:23 PM, Sam Liddicott <address@hidden> wrote:
A rescue image made with "grub-mkrescue --diet -o grub.img" and booted as a cd can load a kernel and ramdisk from the CD.

When converted to a floppy image: cat grub.img /dev/zero | dd bs=1024 count=2880 of=2880.img
it cannot load files a CD inserted into the drive but only floppy or hd.

I wish to from floppy and then boot a CD - but not using a chainloader; I need to pass specific kernel options.

Can grub do this?


I decided to use kexec-loader, a small linux kernel loaded from a floppy which then uses kernel device drivers to load the next-hop kernel and ramdisk
http://www.solemnwarning.net/kexec-loader/

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