build-iso

#!/bin/sh

set -e

. "$(dirname $0)/config.sh"

for ARCH in $ARCHS
do
	ORIG="ubuntu-$VERSION-$DISTRO-$ARCH.iso"
	COPY="ubuntu-$VERSION-$DISTRO-$ARCH"
	ISO="${ISOPREFIX}-ubuntu-$VERSION-$DISTRO-$ARCH.iso"

	# Download the original ISO if it isn't present already.
	[ -f "$ORIG" ] || curl -L -o "$ORIG" \
		-d distro="$DISTRO" \
		-d release="$RELEASE" \
		-d bits="$([ "$ARCH" = "i386" ] && echo 32 || echo 64)" \
		"http://www.ubuntu.com/start-download"

	# Make a writable copy of the original ISO.
  mkdir -p isomount
  sudo mount -o loop,user "${ORIG}" isomount
	rsync -a "isomount/" "$COPY"
	sudo umount isomount
	chmod -R +w "$COPY"

	# Customize the writable copy.
	m4 \
	        -D __LABEL__="${LABEL}" \
	        "isolinux.cfg.m4" > "$COPY/isolinux/isolinux.cfg"
	m4 \
		-D __HOST__="$HOST" \
		-D __DOMAIN__="$DOMAIN" \
		-D __KERNEL__="linux-$([ "$ARCH" = "i386" ] \
			&& echo generic-pae \
			|| echo server
		)" \
		-D __ROOT_PASSWORD__="$ROOT_PASSWORD" \
		-D __USERNAME__="$USERNAME" \
		-D __PASSWORD__="$PASSWORD" \
		-D __LABEL__="${LABEL}" \
		"default.seed.m4" >"$COPY/preseed/${LABEL}.seed"

    # cp "$PUBLIC_KEY" "setup.sh" "$COPY/"
	cp "$PUBLIC_KEY" "sudoers" "$COPY/"
	m4 \
		-D __USERNAME__="$USERNAME" \
		-D __PUBLIC_KEY__="$PUBLIC_KEY" \
		"default.sh.m4" >"$COPY/${LABEL}.sh"
	# Build a custom ISO.
	mkisofs -r -V "Ubuntu $VERSION for ${LABEL}" \
		-cache-inodes -J -l -no-emul-boot \
		-b isolinux/isolinux.bin \
		-c isolinux/boot.cat \
		-boot-load-size 4 -boot-info-table \
		-o "$ISO" "$COPY"
	echo "Completed building custom is for ${LABEL} [${ARCH}]"
done