mirror of
https://gitlab.archlinux.org/tpowa/archboot.git
synced 2024-09-20 03:50:37 +02:00
105 lines
3.4 KiB
Bash
Executable file
105 lines
3.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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## Script for creating a UEFI CD bootable ISO from existing Archboot ISO
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## by Tobias Powalowski <tpowa@archlinux.org>
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## Contributed by "Keshav Padram Amburay" <the ddoott ridikulus ddoott rat aatt geemmayil ddoott ccoomm>
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# change to english locale!
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export LANG="en_US"
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_BASENAME="$(basename "${0}")"
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usage () {
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echo "${_BASENAME}: usage"
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echo "Create UEFI CD bootable ISO from existing Archboot ISO image."
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echo ""
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echo "PARAMETERS:"
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echo " -i=IMAGENAME Your input IMAGENAME."
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echo " -o=IMAGENAME Your output IMAGENAME."
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echo " -h This message."
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exit 0
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}
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[[ -z "${1}" ]] && usage
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while [ $# -gt 0 ]; do
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case ${1} in
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-i=*|--i=*) INPUT_IMAGENAME="$(echo ${1} | awk -F= '{print $2;}')" ;;
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-o=*|--o=*) OUTPUT_IMAGENAME="$(echo ${1} | awk -F= '{print $2;}')" ;;
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-h|--h|?) usage ;;
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*) usage ;;
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esac
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shift
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done
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### check for root
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if ! [[ ${UID} -eq 0 ]]; then
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echo "ERROR: Please run as root user!"
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exit 1
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fi
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### check for available loop devices in a container
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for i in $(seq 0 7); do
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! [[ -e /dev/loop$i ]] && mknod /dev/loop$i b 7 $i
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done
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! [[ -e /dev/loop-control ]] && mknod /dev/loop-control c 10 237
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FSIMG=$(mktemp -d)
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ISOIMG=$(mktemp -d)
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MOUNT_FSIMG=$(mktemp -d)
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## Extract old ISO
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bsdtar -C "${ISOIMG}" -xf "${INPUT_IMAGENAME}"
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# 7z x -o /tmp/ARCHBOOTISO/ "${INPUT_IMAGENAME}"
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## get size of boot x86_64 files
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BOOTSIZE=$(du -bc ${ISOIMG}/{EFI,loader,boot/vmlinuz_x86_64,boot/initramfs_x86_64.img} | grep total | cut -f1)
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IMGSZ=$(( (${BOOTSIZE}*102)/100/1024 + 1)) # image size in sectors
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## Create cdefiboot.img
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dd if=/dev/zero of="${FSIMG}"/cdefiboot.img bs="${IMGSZ}" count=1024
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mkfs.vfat "${FSIMG}"/cdefiboot.img
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LOOPDEV="$(losetup --find --show "${FSIMG}"/cdefiboot.img)"
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## Mount cdefiboot.img
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mount -t vfat -o rw,users "${LOOPDEV}" "${MOUNT_FSIMG}"
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## Copy UEFI files fo cdefiboot.img
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mkdir "${MOUNT_FSIMG}"/boot
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cp -r "${ISOIMG}"/{EFI,loader} "${MOUNT_FSIMG}"/
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cp "${ISOIMG}"/boot/vmlinuz_x86_64 "${ISOIMG}"/boot/initramfs_x86_64.img "${MOUNT_FSIMG}"/boot/
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## Unmount cdefiboot.img
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umount "${LOOPDEV}"
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losetup --detach "${LOOPDEV}"
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rm -rf "${MOUNT_FSIMG}"
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## Move updated cdefiboot.img to old ISO extracted dir
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mkdir -p "${ISOIMG}"/CDEFI/
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rm "${ISOIMG}"/CDEFI/cdefiboot.img
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mv "${FSIMG}"/cdefiboot.img "${ISOIMG}"/CDEFI/cdefiboot.img
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rm -rf "${FSIMG}"
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## Create new ISO with BIOS, ISOHYBRID and UEFI support
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xorriso -as mkisofs \
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-iso-level 3 -rock -joliet \
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-max-iso9660-filenames -omit-period \
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-omit-version-number -allow-leading-dots \
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-relaxed-filenames -allow-lowercase -allow-multidot \
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-volid "ARCHBOOT" \
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-preparer "prepared by archboot-uefi-cd.sh" \
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-eltorito-boot boot/syslinux/isolinux.bin \
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-eltorito-catalog boot/syslinux/boot.cat \
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-no-emul-boot -boot-load-size 4 -boot-info-table \
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-eltorito-alt-boot -e CDEFI/cdefiboot.img -isohybrid-gpt-basdat \
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-no-emul-boot \
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-isohybrid-mbr "${ISOIMG}"/boot/syslinux/isohdpfx.bin \
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--sort-weight 1 boot/syslinux/isolinux.bin \
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-output "${OUTPUT_IMAGENAME}" "${ISOIMG}"/ &> /tmp/xorriso.log
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if [[ -e "${OUTPUT_IMAGENAME}" ]]; then
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echo "Updated ISO at "${OUTPUT_IMAGENAME}""
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else
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echo "ISO generation failed. See /tmp/xorriso.log for more info."
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fi
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## Delete old ISO extracted files
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rm -rf "${ISOIMG}"
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