mkiso

#!/usr/bin/env bash
set -Eeuo pipefail
cd $(dirname $1)
# dnf -y install xorriso dosfstools mtools

trap "rm -fr iso_src efiboot.img" EXIT
mkdir -p iso_src/LiveOS
cp --reflink=auto image.squashfs iso_src/LiveOS/squashfs.img

kernel_size=`du -b image_iso.efi | awk '{print \$1}'`
image_size=$((kernel_size + 512000))
rm -f efiboot.img
truncate -s $image_size efiboot.img
mkfs.vfat efiboot.img
mmd -i efiboot.img efi efi/boot
mcopy -i efiboot.img image_iso.efi ::efi/boot/bootx64.efi

xorriso \
    -as mkisofs \
    -iso-level 3 \
    -full-iso9660-filenames \
    -volid "LINUX_IPA" \
    -eltorito-alt-boot \
        -e EFI/efiboot.img \
        -no-emul-boot \
    -append_partition 2 0xef efiboot.img \
    -output image.iso \
    -graft-points \
	"./iso_src" \
        /EFI/efiboot.img=efiboot.img