set -ex -p pipefail
echo "Building initram disk"
mkdir -p $out/root
pushd $out/root

### copy rootfs
cp -prP $rootfs/* .
find . -type d -exec chmod 755 {} \;
mkdir sysroot

### create directories
ln -sf ../usr/lib/systemd/systemd init

### Create needed files
echo patos > ./etc/hostname

ln -sf /etc/os-release ./etc/initrd-release

# gen initrd
find . -print0 | cpio --null --owner=root:root -o --format=newc | xz -9 --check=crc32 > ../initrd.xz

popd
rm -rf $out/root