#!/bin/sh

initrd=isolinux/live/initrd.img
vmlinuz=isolinux/live/vmlinuz

version=$(uname -r)
conf_dir=initramfs-tools

if [ ! -e "$initrd" -o ! -e "$vmlinuz" ]; then
    need_update=1
elif [ "$(find "$conf_dir" -newer "$initrd" -print -quit)" ]; then
    need_update=1
fi

if [ "$need_update" ]; then
    set -ex
    cp -f /boot/vmlinuz-${version} "$vmlinuz"
    /usr/sbin/mkinitramfs -d "$conf_dir" -o "$initrd" ${version}
fi