1 files changed, 35 insertions, 0 deletions
diff --git a/modules.d/dnbd3-rootfs/hooks/copy-dracut-systemd-files-into-newroot.sh b/modules.d/dnbd3-rootfs/hooks/copy-dracut-systemd-files-into-newroot.sh
new file mode 100755
index 00000000..5de1f2e9
--- /dev/null
+++ b/modules.d/dnbd3-rootfs/hooks/copy-dracut-systemd-files-into-newroot.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# -*- coding: utf-8 -*-
+type emergency_shell >/dev/null 2>&1 || source /lib/dracut-lib.sh
+
+# Needed to be able to go back to dracut at system shutdown.
+temporary_directory_path="$(mktemp --directory)"
+mount --options bind / "$temporary_directory_path"
+cp --recursive --no-target-directory "$temporary_directory_path" /run/initramfs
+umount "$temporary_directory_path"
+rm --dir "$temporary_directory_path"
+
+# Dracut may not be installed on the new root. Thus copy all services over.
+dracut_mount_unit_path="$(systemctl show -p FragmentPath dracut-mount.service \
+	| cut -c 14-)"
+systemd_system_unit_path="${dracut_mount_unit_path%/*}"
+new_systemd_system_unit_path="${NEWROOT}/lib/systemd/system"
+
+mkdir --parents "$new_systemd_system_unit_path/initrd.target.wants"
+for file in \
+    dracut-cmdline.service \
+    dracut-initqueue.service \
+    dracut-mount.service \
+    dracut-pre-mount.service \
+    dracut-pre-pivot.service \
+    dracut-pre-trigger.service \
+    dracut-pre-udev.service
+do
+    cp "${systemd_system_unit_path}/${file}" \
+        "${new_systemd_system_unit_path}/${file}"
+    # "ln" returns an error if the link already exists.
+    source_path="../${file}"
+    target_path="${new_systemd_system_unit_path}/initrd.target.wants/${file}"
+    ln --symbolic "$source_path" "$targetPath" &>/dev/null || \
+    warn "Failed to link \"$source_path\" to \"$target_path\"."
+done