From Fedora Project Wiki
These are the steps necessary to create a DVD with several spins on it:
Prerequisites
- Software: coreutils, grub genisoimage (from the Fedora package repositories=
- ISOs: Images of all spins
Create the directory structure
mkdir multidvd cd multidvd mkdir -p ./{i686,x86_64}/{Live,KDE,LXDE,Xfce} mkdir -p ./i686/boot/grub
Create the boot loader configuration
$EDITOR ./i686/boot/grub/grub.conf
default=0 splashimage=/i686/Live/EFI/boot/splash.xpm.gz timeout 30 title Fedora 14 i686 Live kernel /i686/Live/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/i686/Live/LiveOS ro liveimg quiet rhgb initrd /i686/Live/EFI/boot/initrd0.img title Fedora 14 x86_64 Live kernel /x86_64/Live/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/x86_64/Live/LiveOS ro liveimg quiet rhgb initrd /x86_64/Live/EFI/boot/initrd0.img title Fedora 14 i686 Live KDE kernel /i686/KDE/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/i686/KDE/LiveOS ro liveimg quiet rhgb initrd /i686/KDE/EFI/boot/initrd0.img title Fedora 14 x86_64 Live KDE kernel /x86_64/KDE/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/x86_64/KDE/LiveOS ro liveimg quiet rhgb initrd /x86_64/KDE/EFI/boot/initrd0.img title Fedora 14 i686 Live LXDE kernel /i686/LXDE/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/i686/LXDE/LiveOS ro liveimg quiet rhgb initrd /i686/LXDE/EFI/boot/initrd0.img title Fedora 14 x86_64 Live LXDE kernel /x86_64/LXDE/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/x86_64/LXDE/LiveOS ro liveimg quiet rhgb initrd /x86_64/LXDE/EFI/boot/initrd0.img title Fedora 14 i686 Live Xfce kernel /i686/Xfce/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/i686/Xfce/LiveOS ro liveimg quiet rhgb initrd /i686/Xfce/EFI/boot/initrd0.img title Fedora 14 i686 Live Xfce kernel /x86_64/Xfce/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/x86_64/Xfce/LiveOS ro liveimg quiet rhgb initrd /x86_64/Xfce/EFI/boot/initrd0.img title Verify media configfile /i686/boot/grub/submenu.lst
$EDITOR ./i686/boot/grub/submenu.lst
default=0 splashimage=/i686/Live/EFI/boot/splash.xpm.gz timeout 30 title Verify and boot Fedora 14 i686 Live kernel /i686/Live/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/i686/Gnome/LiveOS ro liveimg quiet rhgb check initrd /i686/Live/EFI/boot/initrd0.img title Verify and boot Fedora 14 x86_64 Live kernel /x86_64/Live/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/x86_64/Gnome/LiveOS ro liveimg quiet rhgb check initrd /x86_64/Live/EFI/boot/initrd0.img title Verify and boot Fedora 14 i686 Live KDE kernel /i686/KDE/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/i686/KDE/LiveOS ro liveimg quiet rhgb check initrd /i686/KDE/EFI/boot/initrd0.img title Verify and boot Fedora 14 x86_64 Live KDE kernel /x86_64/KDE/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/x86_64/KDE/LiveOS ro liveimg quiet rhgb check initrd /x86_64/KDE/EFI/boot/initrd0.img title Verify and boot Fedora 14 i686 Live LXDE kernel /i686/LXDE/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/i686/LXDE/LiveOS ro liveimg quiet rhgb check initrd /i686/LXDE/EFI/boot/initrd0.img title Verify and boot Fedora 14 x86_64 Live LXDE kernel /x86_64/LXDE/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/x86_64/LXDE/LiveOS ro liveimg quiet rhgb check initrd /x86_64/LXDE/EFI/boot/initrd0.img title Verify and boot Fedora 14 i686 Live Xfce kernel /i686/Xfce/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/i686/Xfce/LiveOS ro liveimg quiet rhgb check initrd /i686/Xfce/EFI/boot/initrd0.img title Verify and boot Fedora 14 x86_64 Live Xfce kernel /x86_64/Xfce/EFI/boot/vmlinuz0 root=live:LABEL=Fedora-14-multi rootfstype=auto live_dir=/x86_64/Xfce/LiveOS ro liveimg quiet rhgb check initrd /x86_64/Xfce/EFI/boot/initrd0.img title Back to main menu configfile /i686/boot/grub/menu.lst
ln -s grub.conf ./i686/boot/grub/menu.lst cp /usr/share/grub/x86_64-redhat/stage2_eltorito ./i686/boot/grub/stage2_eltorito
Mount the ISOs
su -c 'mount -o loop ~/Downloads/torrents/Fedora-14-i686-Live/Fedora-14-i686-Live.iso ./i686/live' ...
Create the DVD ISO
mkdir -p Fedora-14-i686-Live-multi mkisofs -R -v -V "Fedora-14-multi" -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -o Fedora-14-i686-Live-multi /Fedora-14-i686-Live-multi.iso i686