Re: Grub et cd d'amorcage ...

Thu, 10 Mar 2005 12:38:12 -0800

Matthias @ Little Gobelin' a �crit : 
Le Jeudi 10 Mars 2005 18:34, S�bastien GALLET a �crit :

Hell4Life a �crit :
...


j'avoue que je n'ai pas beaucoup avanc� ... la commande info grub ne donne rien sur la cr�ation de cd grub bootable ... ou alors, j'ai pas cherch� comme il fallait ...

si tu as des infos un peu plus d�taill�es ... 
info grub
3.4 Making a GRUB bootable CD-ROM
=================================

GRUB supports the "no emulation mode" in the El Torito specification(1)
(*note Making a GRUB bootable CD-ROM-Footnote-1::). This means that you
can use the whole CD-ROM from GRUB and you don't have to make a floppy
or hard disk image file, which can cause compatibility problems.

   For booting from a CD-ROM, GRUB uses a special Stage 2 called
`stage2_eltorito'. The only GRUB files you need to have in your
bootable CD-ROM are this `stage2_eltorito' and optionally a config file
`menu.lst'. You don't need to use `stage1' or `stage2', because El
Torito is quite different from the standard boot process.

   Here is an example of procedures to make a bootable CD-ROM image.
First, make a top directory for the bootable image, say, `iso':

     $ mkdir iso

   Make a directory for GRUB:

     $ mkdir -p iso/boot/grub

   Copy the file `stage2_eltorito':

     $ cp /usr/lib/grub/i386-pc/stage2_eltorito iso/boot/grub

   If desired, make the config file `menu.lst' under `iso/boot/grub'
(*note Configuration::), and copy any files and directories for the
disc to the directory `iso/'.

   Finally, make a ISO9660 image file like this:

     $ mkisofs -R -b boot/grub/stage2_eltorito -no-emul-boot \
         -boot-load-size 4 -boot-info-table -o grub.iso iso

   This produces a file named `grub.iso', which then can be burned into
a CD (or a DVD).  `mkisofs' has already set up the disc to boot from
the `boot/grub/stage2_eltorito' file, so there is no need to setup GRUB
on the disc.  (Note that the `-boot-load-size 4' bit is required for
compatibility with the BIOS on many older machines.)

  You can use the device `(cd)' to access a CD-ROM in your config
file. This is not required; GRUB automatically sets the root device to
`(cd)' when booted from a CD-ROM. It is only necessary to refer to
`(cd)' if you want to access other drives as well.

Je peux te passer mon iso si tu veux. Il NE MARCHERA PAS chez toi (noyo perso) mais ca peut t'aider a avancer (1,5Mo)

Mat'
Sebastien 




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