--- /dev/null
+# This file is part of systemd.
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+
+[Unit]
+Description=Cleanup udevd DB
+DefaultDependencies=no
+ConditionPathExists=/etc/initrd-release
+Conflicts=systemd-udevd.service systemd-udevd-control.socket systemd-udevd-kernel.socket
+After=systemd-udevd.service systemd-udevd-control.socket systemd-udevd-kernel.socket
+Before=initrd-switch-root.target
+
+[Service]
+Type=oneshot
+ExecStart=-@bindir@/udevadm info --cleanup-db