Create Fedora Installer ISO using GRUB

Introduction

This is just method to produce the Fedora Installer DVDs using the Grub boot loader instead of ISOLINUX.

Software Used

Base OS used, on which Fedora-13 installer was created was , Ubuntu 8.04.3 LTS (hardy). Fedora-13 will be used for which installer will be created using GRUB as boot loader.

Steps Performed
Copy the required files
Copy whole DVD contents

mkdir grubdvdrom
mount -o loop /mnt/ISO-IMAGES/Fedora/Fedora-13-i386-DVD.iso /tmp/fedora-13
rsync -avz /tmp/fedora-13/ grubdvdrom/
umount /tmp/fedora-13

Copy grub files from Base OS

mkdir grubdvdrom/boot
cp -r /boot/grub grubdvdrom/boot
cp grubdvdrom/isolinux/{vmlinuz,initrd.img} grubdvdrom/boot
cp /usr/lib/grub/x86_64-pc/stage2_eltorito grubdvdrom/boot/grub

Note: Fedora DVDROM contains some hidden files like .treeinfo, which are must in order to recognize local repos for anaconda installer. If these files are not copied then anaconda will go only to internet for repos. There we used rsync to make sure each file has been copied.Also you have to maintain the tree structure of boot/grub as a whole.

Create menu.lst file
create or modify grubdvdrom/boot/grub/menu.lst file with following contents.
title Fedora-13 Grub ISO Installer
kernel /boot/vmlinuz
initrd /boot/initrd.img

Create ISO

cd grubdvdrom
mkisofs -o Fedora-13.iso -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -J -r -hide-rr-moved -V Fedora