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Grub with iso9660 [El Torito support is added]

From: Linux
Subject: Grub with iso9660 [El Torito support is added]
Date: Thu, 16 Sep 2004 15:30:04 +0200

On the Fedora list I posted the following question, but have got no good answers.
Has anyone the answer?
Making a GRUB bootable CD is no problem at all. What I can't get to work is installing GRUB on another medium, like floppy and harddisk, and then, after the system has booted into GRUB, being able to access a kernel and initrd that reside on a cd/dvd.
I would like to use a grub.conf like this:
---------------------------------------- grub.conf -------------------------------
default 0
timeout 10

title My Linux on harddisk
        root (hd0,0)
        kernel /vmlinuz ro root=LABEL=/
        initrd /initrd.img
title My rescue on CD
        root (cd)
        kernel /vmlinuz ro text rescue
        initrd /initrd.img
------------------------------------ end grub.conf ------------------------------- If I make a CD bootable grub with stage2_eltorito from grub-0.95, the (cd) directive is available. If I install the stage2 from grub -0.95 on floppy or harddisk, the (cd)-directive is not available. Further I can't find any documentation on how to incorporate the iso9660_stage1_5 image in the boot system.

I found a message describing the command to use in the grub shell is:
install (fd0)/stage1 (fd0) (fd0)/iso9660_stage1_5 (fd0)/stage2 p (fd0)/grub.conf

In this example all the stage files where installed in the root of the floppy filesystem. Following this I had a floppy that after booting wrote the word "GRUB" to the screen endlessly.
Should I just replace stage2 with iso9660_stage1_5 in the install-command?
> I think I have to use the iso9660_stage1_5 file for this. But when I tried
> to embed this file from grub it did not succeed

Regards, Koos Werkman.

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