#!/bin/bash

# Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
# Date: 2009-10-08
# License: GPL v3+

set -e

# depends on grub2 -- should probably be refactored to use
# grub-mkrescue

WORKDIR=$(mktemp -d)

( cd "$WORKDIR" && wget http://ftp.nl.debian.org/debian/dists/lenny/main/installer-amd64/current/images/netboot/debian-installer/amd64/{linux,initrd.gz} )

mkdir -p "$WORKDIR/boot/grub"

cp /usr/lib/grub/x86_64-pc/stage2_eltorito "$WORKDIR/boot/grub/"
cat > "$WORKDIR/boot/grub/menu.lst" <<EOF
serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
terminal serial

title lenny d-i (created $(date -R))
kernel /linux -- console=ttyS0,115200n8
initrd /initrd.gz
EOF

genisoimage -R -input-charset utf-8 -b boot/grub/stage2_eltorito -no-emul-boot --boot-load-size 4 -boot-info-table "$WORKDIR"

rm -rf "$WORKDIR"