label install64
    menu label Ubuntu LTS GNU/Linux ^64 bits
    kernel installer/ubuntu/lts/amd64/linux
    append vga=normal initrd=installer/ubuntu/lts/i386/initrd.gz -- quiet
label install86
    menu label Ubuntu LTS GNU/Linux ^86 bits
    kernel installer/ubuntu/lts/i386/linux
    append vga=normal initrd=installer/ubuntu/lts/i386/initrd.gz -- quiet
label separator
    menu label -----
label mainmenu
    menu label ^Back..
    menu exit