+ call that POSIX specifies.</para>
+
+ <para>The
+ <citerefentry><refentrytitle>systemd-machine-id-setup</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ tool may be used by installer tools to initialize the
+ machine ID at install time. Use
+ <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ to initialize it on mounted (but not booted) system
+ images.</para>