chiark / gitweb /
mount/service: drop FsckPassNo support
[elogind.git] / man / systemd-nspawn.xml
index 8adcd946b0438e6da634576eefc780a99ada068a..7d450f912c1c617c17d6bd41a32eb0d87374963a 100644 (file)
                 involved with boot and systems management.</para>
 
                 <para>In contrast to
                 involved with boot and systems management.</para>
 
                 <para>In contrast to
-                <citerefentry><refentrytitle>chroot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
-                <command>systemd-nspawn</command> may be used to boot
-                full Linux-based operating systems in a
-                container.</para>
+                <citerefentry><refentrytitle>chroot</refentrytitle><manvolnum>1</manvolnum></citerefentry> <command>systemd-nspawn</command>
+                may be used to boot full Linux-based operating systems
+                in a container.</para>
 
                 <para>Use a tool like
                 <citerefentry><refentrytitle>yum</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 
                 <para>Use a tool like
                 <citerefentry><refentrytitle>yum</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
-                <citerefentry><refentrytitle>debootstrap</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                <citerefentry><refentrytitle>debootstrap</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
                 or
                 <citerefentry><refentrytitle>pacman</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                 to set up an OS directory tree suitable as file system
                 or
                 <citerefentry><refentrytitle>pacman</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                 to set up an OS directory tree suitable as file system
                 <ulink
                 url="http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface">Container
                 Interface</ulink> specification.</para>
                 <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
+                existence 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>
+                <title>Incompatibility with Auditing</title>
+
+                <para>Note that the kernel auditing subsystem is
+                currently broken when used together with
+                containers. We hence recommend turning it off entirely
+                by booting with <literal>audit=0</literal> on the
+                kernel command line, or by turning it off at kernel
+                build time. If auditing is enabled in the kernel,
+                operating systems booted in an nspawn container might
+                refuse log-in attempts.</para>
         </refsect1>
 
         <refsect1>
         </refsect1>
 
         <refsect1>
 
                                 <listitem><para>Directory to use as
                                 file system root for the namespace
 
                                 <listitem><para>Directory to use as
                                 file system root for the namespace
-                                container. If omitted the current
+                                container. If omitted, the current
                                 directory will be
                                 used.</para></listitem>
                         </varlistentry>
                                 directory will be
                                 used.</para></listitem>
                         </varlistentry>
                                 </para></listitem>
                         </varlistentry>
 
                                 </para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><option>-M</option></term>
+                                <term><option>--machine=</option></term>
+
+                                <listitem><para>Sets the machine name
+                                for this container. This name may be
+                                used to identify this container on the
+                                host, and is used to initialize the
+                                container's hostname (which the
+                                container can choose to override,
+                                however). If not specified, the last
+                                component of the root directory of the
+                                container is used.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><option>--slice=</option></term>
+
+                                <listitem><para>Make the container
+                                part of the specified slice, instead
+                                of the
+                                <filename>machine.slice</filename>.</para>
+                                </listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><option>--uuid=</option></term>
 
                         <varlistentry>
                                 <term><option>--uuid=</option></term>
 
-                                <listitem><para>Set the specified uuid
+                                <listitem><para>Set the specified UUID
                                 for the container. The init system
                                 will initialize
                                 <filename>/etc/machine-id</filename>
                                 for the container. The init system
                                 will initialize
                                 <filename>/etc/machine-id</filename>
                                 </para></listitem>
                         </varlistentry>
 
                                 </para></listitem>
                         </varlistentry>
 
-                        <varlistentry>
-                                <term><option>-C</option></term>
-                                <term><option>--controllers=</option></term>
-
-                                <listitem><para>Makes the container appear in
-                                other hierarchies than the name=systemd:/ one.
-                                Takes a comma-separated list of controllers.
-                                </para></listitem>
-                        </varlistentry>
-
                         <varlistentry>
                                 <term><option>--private-network</option></term>
 
                         <varlistentry>
                                 <term><option>--private-network</option></term>
 
                                 <term><option>--read-only</option></term>
 
                                 <listitem><para>Mount the root file
                                 <term><option>--read-only</option></term>
 
                                 <listitem><para>Mount the root file
-                                system read only for the
+                                system read-only for the
                                 container.</para></listitem>
                         </varlistentry>
 
                                 container.</para></listitem>
                         </varlistentry>
 
 
                                 <listitem><para>List one or more
                                 additional capabilities to grant the
 
                                 <listitem><para>List one or more
                                 additional capabilities to grant the
-                                container. Takes a comma separated
+                                container. Takes a comma-separated
                                 list of capability names, see
                                 <citerefentry><refentrytitle>capabilities</refentrytitle><manvolnum>7</manvolnum></citerefentry>
                                 for more information. Note that the
                                 list of capability names, see
                                 <citerefentry><refentrytitle>capabilities</refentrytitle><manvolnum>7</manvolnum></citerefentry>
                                 for more information. Note that the
 
                                 <listitem><para>Control whether the
                                 container's journal shall be made
 
                                 <listitem><para>Control whether the
                                 container's journal shall be made
-                                visible to the host system. If enabled
+                                visible to the host system. If enabled,
                                 allows viewing the container's journal
                                 files from the host (but not vice
                                 versa). Takes one of
                                 allows viewing the container's journal
                                 files from the host (but not vice
                                 versa). Takes one of
                                 <filename>/var/log/journal</filename>
                                 exists, it will be bind mounted
                                 into the container. If the
                                 <filename>/var/log/journal</filename>
                                 exists, it will be bind mounted
                                 into the container. If the
-                                subdirectory doesn't exist, no
+                                subdirectory does not exist, no
                                 linking is performed. Effectively,
                                 booting a container once with
                                 <literal>guest</literal> or
                                 linking is performed. Effectively,
                                 booting a container once with
                                 <literal>guest</literal> or
 # systemd-nspawn -bD /srv/mycontainer</programlisting>
 
                 <para>This installs a minimal Fedora distribution into
 # systemd-nspawn -bD /srv/mycontainer</programlisting>
 
                 <para>This installs a minimal Fedora distribution into
-                the directory <filename>/srv/mycontainer/</filename> and
+                the directory <filename noindex='true'>/srv/mycontainer/</filename> and
                 then boots an OS in a namespace container in
                 it.</para>
         </refsect1>
                 then boots an OS in a namespace container in
                 it.</para>
         </refsect1>
                 (as viewed from the outside) of the launched process,
                 and it can be used to enter the container.</para>
 
                 (as viewed from the outside) of the launched process,
                 and it can be used to enter the container.</para>
 
-                <programlisting># nsenter -muinpt $PID</programlisting>
+                <programlisting># nsenter -m -u -i -n -p -t $PID</programlisting>
 
                 <para><citerefentry><refentrytitle>nsenter</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                 is part of
 
                 <para><citerefentry><refentrytitle>nsenter</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                 is part of
                         <citerefentry><refentrytitle>unshare</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>yum</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>debootstrap</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>unshare</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>yum</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>debootstrap</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
-                        <citerefentry><refentrytitle>pacman</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                        <citerefentry><refentrytitle>pacman</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>
                 </para>
         </refsect1>
 
                 </para>
         </refsect1>