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-rw-r--r--man/systemd-nspawn.xml9
1 files changed, 9 insertions, 0 deletions
diff --git a/man/systemd-nspawn.xml b/man/systemd-nspawn.xml
index e7c859d11d..cab5990a56 100644
--- a/man/systemd-nspawn.xml
+++ b/man/systemd-nspawn.xml
@@ -133,6 +133,15 @@
<ulink
url="http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface">Container
Interface</ulink> specification.</para>
+
+ <para>As a safety check
+ <command>systemd-nspawn</command> will verify the
+ existance of <filename>/etc/os-release</filename> in
+ the container tree before starting the container (see
+ <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>). It
+ might be necessary to add this file to the container
+ tree manually if the OS of the container is too old to
+ contain this file out-of-the-box.</para>
</refsect1>
<refsect1>