#!/bin/bash set -eE function clean() { echo "==== CLEAN ERR ====" sudo umount "$WORKDIR/squashfs" || : sudo umount /tmp/livecd || : } trap clean ERR SPATH=$(cd $(dirname $0) && pwd) if [ -z $1 ]; then echo "Usage: prepare.sh " exit 1 fi full_iso=$1 iso_wo_ext=${full_iso##*/} iso_wo_ext=${iso_wo_ext%.iso} WORKDIR="$SPATH/$iso_wo_ext" echo "==== Prepare CD ====" mkdir /tmp/livecd || : sudo mount -o loop "$1" /tmp/livecd mkdir -p "$WORKDIR" rsync --exclude=/casper/filesystem.squashfs -a /tmp/livecd/ "$WORKDIR/cd" mkdir "$WORKDIR/squashfs" "$WORKDIR/custom" sudo modprobe squashfs sudo mount -t squashfs -o loop /tmp/livecd/casper/filesystem.squashfs "$WORKDIR/squashfs/" echo "==== Copy squashfs contents to $WORKDIR/custom ====" sudo cp -a "$WORKDIR"/squashfs/* "$WORKDIR/custom" # network access sudo cp /etc/resolv.conf /etc/hosts "$WORKDIR/custom/etc/" # mount proc, sys, opens a shell (for changes), and clean everything after echo "==== CHROOT ====" cat "$SPATH/tasks.sh" | sudo chroot "$WORKDIR/custom" /bin/bash echo "==== Mod ISOLINUX (BIOS) AND GRUB (EFI) ====" # isolinux chmod -R +w "$WORKDIR/cd/isolinux" cp isolinux/* "$WORKDIR/cd/isolinux/" # grub chmod -R +w "$WORKDIR/cd/boot/grub" cp grub/* "$WORKDIR/cd/boot/grub/" # setup iso echo "==== Setup ISO ====" chmod +w "$WORKDIR/cd/casper/filesystem.manifest" sudo chroot "$WORKDIR/custom" dpkg-query -W --showformat='${Package} ${Version}\n' > "$WORKDIR/cd/casper/filesystem.manifest" sudo cp "$WORKDIR/cd/casper/filesystem.manifest" "$WORKDIR/cd/casper/filesystem.manifest-desktop" sudo mksquashfs "$WORKDIR/custom" "$WORKDIR/cd/casper/filesystem.squashfs" sudo rm "$WORKDIR/cd/MD5SUMS" sudo chmod +w "$WORKDIR/cd" sudo bash -c 'cd '"$WORKDIR"'/cd && find . -type f -exec md5sum {} +' > "$WORKDIR"/cd/MD5SUMS # create iso echo "==== Create ISO ====" cd "$WORKDIR/cd" # create a DVD-burnable ISO with BIOS (isolinux) and EFI (grub) support sudo mkisofs -U -A "$iso_wo_ext-LIS67" -V "$iso_wo_ext-LIS67" -volset "$iso_wo_ext-LIS67" -J -joliet-long -r -v -T -o "$WORKDIR/$iso_wo_ext-lis67.iso" -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot . # convert iso to a bootable USB drive iso sudo isohybrid --uefi "$WORKDIR/$iso_wo_ext-lis67.iso" # umount & clean echo "==== Clean ====" sudo umount "$WORKDIR/squashfs" sudo umount /tmp/livecd sudo chown -R $USER: "$WORKDIR" echo "Final ISO: $WORKDIR/$iso_wo_ext-lis67.iso" echo "Done"