+
+ <para>Systems which invoke systemd in a container
+ or initrd environment should implement the
+ <ulink
+ url="http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface">Container
+ Interface</ulink> or <ulink
+ url="http://www.freedesktop.org/wiki/Software/systemd/InitrdInterface">initrd
+ Interface</ulink> specifications, respectively.</para>