grub.cfg

function load_efi_video {
    set gfxmode=auto
    insmod efi_gop
    insmod efi_uga
    insmod gfxterm
    terminal_output gfxterm
}

function load_video {
    set gfxmode=auto
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
    insmod gfxterm
    terminal_output gfxterm
}

if loadfont ($root)/boot/grub/fonts/unicode.pf2
then
    if load_efi_video
    then
        set bios="UEFI BIOS"
    else
        load_video
        set bios="Legacy BIOS"
    fi
fi

set locale_dir=($root)/boot/grub/locale
set lang=zh_TW
insmod gettext

set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30
then
    clear
fi

set gfxpayload=keep

set options="file=/cdrom/preseed/ubuntu.seed boot=casper"
set desktop="locale=zh_TW.UTF-8 toram noeject noprompt"
set extra=""

insmod regexp

for isofile in /iso/*.iso
do
    menuentry "試用 $isofile 免安裝 ($bios)" $isofile {
        loopback loop $2

        if [ -f (loop)/casper/vmlinuz ]; then
            set vmlinuz="(loop)/casper/vmlinuz"
        elif [ -f (loop)/casper/vmlinuz.efi ]; then
            set vmlinuz="(loop)/casper/vmlinuz.efi"
        fi

        if [ -f (loop)/casper/initrd ]; then
            set initrd="(loop)/casper/initrd"
        elif [ -f (loop)/casper/initrd.lz ]; then
            set initrd="(loop)/casper/initrd.lz"
        elif [ -f (loop)/casper/initrd.gz ]; then
            set initrd="(loop)/casper/initrd.gz"
        fi

        linux   $vmlinuz iso-scan/filename=$2 $options $desktop --- $extra
        initrd  $initrd
    }
done