listmodules.sh

#!/usr/bin/env bash

img="$1"
tmpdir=$(mktemp -d)

mkdir "${tmpdir}/iso" "${tmpdir}/install" "${tmpdir}/root" "${tmpdir}/initrd"
sudo mount "${img}" "${tmpdir}/iso"
sudo mount "${tmpdir}/iso/images/install.img" "${tmpdir}/install"
sudo mount "${tmpdir}/install/LiveOS/rootfs.img" "${tmpdir}/root"

sudo find "${tmpdir}" -name "initrd.img" -print -exec file {} \;
sudo /usr/lib/dracut/skipcpio "${tmpdir}"/iso/isolinux/initrd.img | gunzip -c | cpio -idmv -D "${tmpdir}/initrd"
sudo find "${tmpdir}/initrd" -iname "*ko.xz" > "${img}.kmods"
cat "${tmpdir}/initrd/usr/lib/dracut/modules.txt" > "${img}.dracut"
tree "${tmpdir}/initrd/usr/lib/dracut/modules.d" >> "${img}.dracut"

sudo umount "${tmpdir}/root"
sleep 0.2
sudo umount "${tmpdir}/install"
sleep 0.2
sudo umount "${tmpdir}/iso"
sleep 0.2
sudo rm -r "${tmpdir}"

echo "Saved in" ${img}.*