Grub with iso9660

[Linux]

At 21:37 09-09-2004, you wrote:

>On Thu, 2004-09-09 at 15:12, Linux wrote:
> > Since grub 0.95 it comes with iso9660 support. I now managed to create a
> > boot CD using this support. (When will the Fedora distro use grub on it's
> > distribution CD? Its much more flexible then syslinux!!)
> >
>The Fedora Distro does use GRUB.  You can stick GRUB on a floppy to
>boot, but it's much simpler to use mkbootdisk.


I am not looking for the easiest way, but the most elegant way.

> > What I did not succeed to do, is making a boot diskette with grub that can
> > access a CD in a CD drive and load kernel and initrd from that CD while
> > having booted into grub from that floppy.
> >
>Have you looked into mkbootdisk --iso?  That will build a bootable ISO
>image you can burn to CD using your favorite CD burning utility.

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?

Any help is welcom.

Regards, Koos.



> > 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.
> >
> > Has anyone any information if and how this would be possible??
> >
> > Regards, Koos.
>
>--------------------------------------
>Mark Haney
>Network Administrator
>InterAct Public Safety Systems
>mhaney at interactsys.com
>Fedora Core release 2 (Tettnang) Kernel: 2.6.8-1.521 GNU/Linux
>15:35:58 up 1:58, 2 users, load average: 1.79, 1.07, 0.95
>
>
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