add-debian-installer

#!/bin/bash
set -e
. data/extra.sh

DEBIAN_FOUND=
mkdir -p ../debmnt

for iso in grml-plus/debian-*.iso; do
	DEBIAN_FOUND=$iso
	mount $iso ../debmnt -o ro,loop
	ISOFILE=`basename $iso`
	if [ -f ../debmnt/.disk/info ]; then
		DEBNAME=`cat ../debmnt/.disk/info`
	else
		DEBNAME=${ISOFILE%.iso}
	fi
	echo "Adding $DEBNAME..."
	DEBNAME_QUOTED=`echo $DEBNAME | sed 's/"/\\\"/g'`
	DEBIAN_ARCH=
	for candidate in 386 amd; do
		test -f ../debmnt/install.${candidate}/vmlinuz && \
			DEBIAN_ARCH=${candidate}
	done
	if [ -f ../debmnt/linux ]; then
		DEBIAN_VMLINUZ=/linux
		DEBIAN_INITRD=/initrd.gz
		DEBIAN_GTK_INITRD=
	elif [ -z "${DEBIAN_ARCH}" ]; then
		echo "Warning: Could not determine architecture for $ISOFILE"
		continue
	else
		DEBIAN_VMLINUZ="/install.${DEBIAN_ARCH}/vmlinuz findiso=/grml-plus/$ISOFILE"
		DEBIAN_INITRD=/install.${DEBIAN_ARCH}/initrd.gz
		DEBIAN_GTK_INITRD=/install.${DEBIAN_ARCH}/gtk/initrd.gz
		for initrd in $DEBIAN_INITRD $DEBIAN_GTK_INITRD; do
			INITRD_OUT=grml-plus/grub/${ISOFILE%.iso}/initrd.gz
			if [ "$initrd" = "$DEBIAN_GTK_INITRD" ]; then
				INITRD_OUT=grml-plus/grub/${ISOFILE%.iso}/gtkinitrd.gz
			fi
			if [ ! -f $INITRD_OUT ]; then
				echo "Building $INITRD_OUT"
				mkdir -p grml-plus/grub/${ISOFILE%.iso}
				mkdir ../debinit ../debloop
				for mod in ../debmnt/pool/main/l/linux/loop-modules-*.udeb; do
					dpkg -x $mod ../debloop
				done
				pushd ../debinit
				zcat ../debmnt$initrd | cpio -i
				# only copy modules for matching kernels
				for dest in lib/modules/*; do
					cp -r ../debloop/$dest/* $dest
				done
				cp $DATADIR/debian-installer-findiso lib/debian-installer-startup.d/S99findiso
				chmod a+x lib/debian-installer-startup.d/S99findiso
				find . | cpio -o -H newc | gzip -9 \
					>../mnt/$INITRD_OUT
				popd
				rm -R ../debinit ../debloop
			fi
		done
		DEBIAN_INITRD=\$cfgprefix/${ISOFILE%.iso}/initrd.gz
		DEBIAN_GTK_INITRD=\$cfgprefix/${ISOFILE%.iso}/gtkinitrd.gz
	fi
	umount ../debmnt
	cat <<EOF >>grml-plus/grub/extras.cfg

menuentry "$DEBNAME_QUOTED" {
	set DEBIAN_VMLINUZ="${DEBIAN_VMLINUZ}"
	set DEBIAN_INITRD="${DEBIAN_INITRD}"
	set DEBIAN_GTK_INITRD="${DEBIAN_GTK_INITRD}"
	export DEBIAN_VMLINUZ DEBIAN_INITRD DEBIAN_GTK_INITRD
	loopback deb \$images/$ISOFILE
	set root=(deb)
	configfile \$cfgprefix/debian-installer.cfg
	set root=\$orig_root
	loopback -d deb
}
EOF
done

if [ -z "$DEBIAN_FOUND" ]; then
	echo "grml-plus/debian-*.iso not found."
fi

cp $DATADIR/debian-installer.cfg grml-plus/grub
cp $DATADIR/run-debian-installer.sh grml-plus

extra_cleanup