preseed_create

#!/bin/bash

# https://framagit.org/fiat-tux/hat-softwares/preseed-creator
#if [[ ! $# -eq 4 ]]; then
#  echo "Erreur:  donnez en paramètre l'iso, le fichier preseed et les menu installer de isolinux et grub, ie:"
#  echo "Exemple:  preseed_create ~/Téléchargements/firmware-10.8.0-amd64-netinst.iso ~/.config/preseed/preseed.cfg ~/.config/preseed/isolinux.cfg ~/.config/preseed/grub.cfg"
#  exit 1
#fi

# e - script stops on error
# u - error if undefined variable
# o pipefail - script fails if command piped fails
# x - output each line (debug)
#set -euo pipefail

export DEBIAN_FRONTEND=noninteractive
export NEEDRESTART_MODE=a

sudo apt-get install -y isolinux >/dev/null

PRESEED_DIR="$HOME/dev/src/github.com/humboldtux/scripts/preseed"

INPUT=${1:-$(ls ~/Téléchargements/firmware-*-amd64-netinst.iso)}
PRESEED=${2:-${PRESEED_DIR}/preseed.cfg}
ISOLINUX=${3:-${PRESEED_DIR}/isolinux.cfg}
GRUB=${4:-${PRESEED_DIR}/grub.cfg}

if [[ ! -f $INPUT ]]; then
	echo "Fichier ISO $INPUT introuvable"
	exit
fi

if [[ ! -f $PRESEED ]]; then
	echo "Fichier preseed $PRESEED introuvable"
	exit
fi

if [[ ! -f $ISOLINUX ]]; then
	echo "Fichier isolinux $ISOLINUX introuvable"
	exit
fi

if [[ ! -f $GRUB ]]; then
	echo "Fichier grub $GRUB introuvable"
	exit
fi

LOOPDIR="/mnt/loopdir"
OUTPUT="/tmp/debian-nonfree-preseed.iso"
WORKDIR="/tmp/preseed"

sudo -l >/dev/null
echo -ne 'Mounting ${INPUT} in ${MOUNT}               [===========>                  ](40%)\r'
sudo mkdir "$LOOPDIR" -p
sudo mount -o loop "$INPUT" "$LOOPDIR"
if [ $? -ne 0 ]; then
	echo "Error while mounting the ISO $INPUT in $LOOPDIR. Aborting"
	exit 2
fi

mkdir -p "$WORKDIR"/cd
echo -ne 'Extracting ISO image                        [==============>               ](50%)\r'
rsync -a -H --exclude=TRANS.TBL "$LOOPDIR"/ "$WORKDIR"/cd
sudo chmod -R u+rw "$WORKDIR"/cd

echo -ne 'Umounting ${INPUT}${MOUNT}                  [=================>            ](60%)\r'
sudo umount "$LOOPDIR"

echo -ne 'Hacking initrd                              [====================>         ](70%)\r'
mkdir -p "$WORKDIR"/irmod
cd "$WORKDIR"/irmod
gzip -d <"$WORKDIR"/cd/install.amd/initrd.gz | sudo cpio --extract --make-directories --no-absolute-filenames 2>/dev/null
if [ $? -ne 0 ]; then
	echo "Error while getting $WORKDIR/cd/install.amd/initrd.gz content. Aborting"
	exit 1
fi

sudo cp "$PRESEED" "$WORKDIR"/irmod/preseed.cfg
find . | cpio -H newc --create 2>/dev/null | gzip -9 >"$WORKDIR"/cd/install.amd/initrd.gz 2>/dev/null
if [ $? -ne 0 ]; then
	echo "Error while putting new content into $WORKDIR/cd/install.amd/initrd.gz. Aborting"
	exit 1
fi

cd "$WORKDIR" || exit 1
sudo rm -rf "$WORKDIR"/irmod

echo -ne 'Custom isolinux menu                       [=======================>      ](75%)\r'
sed -i 's/include gtk.cfg//g' "$WORKDIR"/cd/isolinux/menu.cfg 2>/dev/null
mv "$WORKDIR"/cd/isolinux/menu.cfg "$WORKDIR"/cd/isolinux/original.cfg
if [ $? -ne 0 ]; then
	echo "Error while renaming $WORKDIR/cd/isolinux/menu.cfg Aborting"
	exit 1
fi

cp "$ISOLINUX" "$WORKDIR"/cd/isolinux/menu.cfg
if [ $? -ne 0 ]; then
	echo "Error while copying menu installer $ISOLINUX to $WORKDIR/cd/isolinux/menu.cfg Aborting"
	exit 1
fi

echo -ne 'Custom grub menu                           [=======================>      ](80%)\r'
cp "$GRUB" "$WORKDIR"/cd/boot/grub/grub.cfg
if [ $? -ne 0 ]; then
	echo "Error while copying menu installer $GRUB to $WORKDIR/cd/boot/grub/grub.cfg Aborting"
	exit 1
fi

echo -ne 'Fixing md5sums                              [========================>     ](85%)\r'
cd "$WORKDIR"/cd || exit 1
find -follow -type f 2>/dev/null | xargs md5sum >md5sum.txt
if [ $? -ne 0 ]; then
	echo 'Error while fixing md5sums. Aborting'
	exit 1
fi

cd "$WORKDIR" || exit 1
echo -ne 'Creating preseeded ISO image                [==========================>   ](90%)\r'
#genisoimage -quiet -o ${OUTPUT} -r -J -no-emul-boot -boot-load-size 4 -boot-info-table -b isolinux/isolinux.bin -c isolinux/boot.cat ${WORKDIR}/cd > /dev/null 2>&1
xorriso -as mkisofs \
	-quiet \
	-o "$OUTPUT" \
	-isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin \
	-c isolinux/boot.cat \
	-b isolinux/isolinux.bin \
	-no-emul-boot -boot-load-size 4 -boot-info-table \
	-eltorito-alt-boot \
	-e boot/grub/efi.img \
	-no-emul-boot \
	-isohybrid-gpt-basdat \
	"$WORKDIR"/cd /dev/null 2>&1

if [ $? -ne 0 ]; then
	echo "Error while creating the preseeded ISO image. Aborting"
	exit 1
fi

echo -ne 'Preseeded ISO image created                 [==============================](100%)\r'
echo -e "\ndeleting $WORKDIR/cd"
rm -rf "$WORKDIR/cd"
echo -e "\n\nYour preseeded ISO image is located at $OUTPUT"