# Pastebin ETP3AQ9d
function make_loop() {
    img="${image_dir}/${image_name}.img"
    num_parts=$(fdisk -l $img | grep "${img}[1-2]" | wc -l)

    if [ "$num_parts" = "2" ]; then
        extra=1
        part_type1=$(fdisk -l $img | grep ${img}1 | awk '{print $6}')
        part_type2=$(fdisk -l $img | grep ${img}2 | awk '{print $6}')

        if [[ "$part_type1" == "c" ]]; then
            bootfstype="vfat"

        elif [[ "$part_type1" == "83" ]]; then
            bootfstype=${bootfstype:-"$fstype"}

        fi

        rootfstype=${rootfstype:-"$fstype"}
        loopdevice=$(losetup --show -fP "$img")
        bootp="${loopdevice}p1"
        rootp="${loopdevice}p2"

    elif [ "$num_parts" = "1" ]; then
        part_type1=$(fdisk -l $img | grep ${img}1 | awk '{print $6}')

        if [[ "$part_type1" == "83" ]]; then
            rootfstype=${rootfstype:-"$fstype"}

        fi

        rootfstype=${rootfstype:-"$fstype"}
        loopdevice=$(losetup --show -fP "$img")
        rootp="${loopdevice}p1"

    fi
}