chiark / gitweb /
NEWS: mention set-log-level, --user, --system
[elogind.git] / man / systemd.xml
index f0fea5d0fefb6c2082f777c74ab84a5d94ee26f4..b4b4845305544fb77264afe7c6c6521e62f936b3 100644 (file)
@@ -8,16 +8,16 @@
   Copyright 2010 Lennart Poettering
 
   systemd is free software; you can redistribute it and/or modify it
   Copyright 2010 Lennart Poettering
 
   systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
+  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.
 
   systemd is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   (at your option) any later version.
 
   systemd is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  General Public License for more details.
+  Lesser General Public License for more details.
 
 
-  You should have received a copy of the GNU General Public License
+  You should have received a copy of the GNU Lesser General Public License
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 -->
 
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 -->
 
@@ -45,7 +45,7 @@
         <refnamediv>
                 <refname>systemd</refname>
                 <refname>init</refname>
         <refnamediv>
                 <refname>systemd</refname>
                 <refname>init</refname>
-                <refpurpose>systemd System and Session Manager</refpurpose>
+                <refpurpose>systemd system and service manager</refpurpose>
         </refnamediv>
 
         <refsynopsisdiv>
         </refnamediv>
 
         <refsynopsisdiv>
@@ -60,7 +60,7 @@
         <refsect1>
                 <title>Description</title>
 
         <refsect1>
                 <title>Description</title>
 
-                <para>systemd is a system and session manager for
+                <para>systemd is a system and service manager for
                 Linux operating systems. When run as first process on
                 boot (as PID 1), it acts as init system that brings
                 up and maintains userspace services.</para>
                 Linux operating systems. When run as first process on
                 boot (as PID 1), it acts as init system that brings
                 up and maintains userspace services.</para>
@@ -77,8 +77,8 @@
                 <para>When run as system instance, systemd interprets
                 the configuration file
                 <filename>system.conf</filename>, otherwise
                 <para>When run as system instance, systemd interprets
                 the configuration file
                 <filename>system.conf</filename>, otherwise
-                <filename>session.conf</filename>. See
-                <citerefentry><refentrytitle>systemd.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                <filename>user.conf</filename>. See
+                <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
                 for more information.</para>
         </refsect1>
 
                 for more information.</para>
         </refsect1>
 
                                 <listitem><para>Prints a short help
                                 text and exits.</para></listitem>
                         </varlistentry>
                                 <listitem><para>Prints a short help
                                 text and exits.</para></listitem>
                         </varlistentry>
+                        <varlistentry>
+                                <term><option>--version</option></term>
+
+                                <listitem><para>Prints a systemd version
+                                identifier and exits.</para></listitem>
+                        </varlistentry>
                         <varlistentry>
                                 <term><option>--test</option></term>
 
                         <varlistentry>
                                 <term><option>--test</option></term>
 
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--system</option></term>
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--system</option></term>
-                                <term><option>--session</option></term>
-
-                                <listitem><para>Tell systemd to run a
-                                system instance (resp. session
-                                instance), even if the process ID is
-                                not 1 (resp. is 1), i.e. systemd is not
-                                (resp. is) run as init process.
+                                <term><option>--user</option></term>
+
+                                <listitem><para>For <option>--system</option>,
+                                tell systemd to run a
+                                system instance, even if the process ID is
+                                not 1, i.e. systemd is not run as init process.
+                                <option>--user</option> does the opposite,
+                                running a user instance even if the process
+                                ID is 1.
                                 Normally it should not be necessary to
                                 pass these options, as systemd
                                 automatically detects the mode it is
                                 started in. These options are hence of
                                 Normally it should not be necessary to
                                 pass these options, as systemd
                                 automatically detects the mode it is
                                 started in. These options are hence of
-                                little use except for
-                                debugging.</para></listitem>
+                                little use except for debugging. Note
+                                that it is not supported booting and
+                                maintaining a full system with systemd
+                                running in <option>--system</option>
+                                mode, but PID not 1. In practice,
+                                passing <option>--system</option> explicitly is
+                                only useful in conjunction with
+                                <option>--test</option>.</para></listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--dump-core</option></term>
 
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--dump-core</option></term>
 
-                                <listitem><para>Dump core on crash. This switch has no effect when run as session instance.</para></listitem>
+                                <listitem><para>Dump core on
+                                crash. This switch has no effect when
+                                run as user
+                                instance.</para></listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--crash-shell</option></term>
 
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--crash-shell</option></term>
 
-                                <listitem><para>Run shell on crash. This switch has no effect when run as session instance.</para></listitem>
+                                <listitem><para>Run shell on
+                                crash. This switch has no effect when
+                                run as user
+                                instance.</para></listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--confirm-spawn</option></term>
 
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--confirm-spawn</option></term>
 
-                                <listitem><para>Ask for confirmation when spawning processes. This switch has no effect when run as session instance.</para></listitem>
+                                <listitem><para>Ask for confirmation
+                                when spawning processes. This switch
+                                has no effect when run as user
+                                instance.</para></listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--show-status=</option></term>
 
                                 <listitem><para>Show terse service
                                 status information while booting. This
                         </varlistentry>
                         <varlistentry>
                                 <term><option>--show-status=</option></term>
 
                                 <listitem><para>Show terse service
                                 status information while booting. This
-                                switch has no effect when run as
-                                session instance. Takes a boolean
-                                argument which may be omitted
-                                which is interpreted as
-                                <option>true</option>.</para></listitem>
-                        </varlistentry>
-                        <varlistentry>
-                                <term><option>--sysv-console=</option></term>
-
-                                <listitem><para>Controls whether
-                                output of SysV init scripts will be
-                                directed to the console. This switch
-                                has no effect when run as session
+                                switch has no effect when run as user
                                 instance. Takes a boolean argument
                                 which may be omitted which is
                                 interpreted as
                                 instance. Takes a boolean argument
                                 which may be omitted which is
                                 interpreted as
                                 <listitem><para>Set log
                                 target. Argument must be one of
                                 <option>console</option>,
                                 <listitem><para>Set log
                                 target. Argument must be one of
                                 <option>console</option>,
+                                <option>journal</option>,
                                 <option>syslog</option>,
                                 <option>kmsg</option>,
                                 <option>syslog</option>,
                                 <option>kmsg</option>,
+                                <option>journal-or-kmsg</option>,
                                 <option>syslog-or-kmsg</option>,
                                 <option>null</option>.</para></listitem>
                         </varlistentry>
                                 <option>syslog-or-kmsg</option>,
                                 <option>null</option>.</para></listitem>
                         </varlistentry>
                                 it defaults to
                                 <option>true</option>.</para></listitem>
                         </varlistentry>
                                 it defaults to
                                 <option>true</option>.</para></listitem>
                         </varlistentry>
+                        <varlistentry>
+                                <term><option>--default-standard-output=</option></term>
+                                <term><option>--default-standard-error=</option></term>
+
+                                <listitem><para>Sets the default
+                                output or error output for all
+                                services and sockets, respectively. That is, controls
+                                the default for
+                                <option>StandardOutput=</option>
+                                and <option>StandardError=</option>
+                                (see
+                                <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                                for details). Takes one of
+                                <option>inherit</option>,
+                                <option>null</option>,
+                                <option>tty</option>,
+                                <option>journal</option>,
+                                <option>journal+console</option>,
+                                <option>syslog</option>,
+                                <option>syslog+console</option>,
+                                <option>kmsg</option>,
+                                <option>kmsg+console</option>.  If the
+                                argument is omitted
+                                <option>--default-standard-output=</option>
+                                defaults to <option>journal</option>
+                                and
+                                <option>--default-standard-error=</option>
+                                to
+                                <option>inherit</option>.</para></listitem>
+                        </varlistentry>
                 </variablelist>
         </refsect1>
 
                 </variablelist>
         </refsect1>
 
                         <citerefentry><refentrytitle>systemd.timer</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para></listitem>
 
                         <listitem><para>Swap units are very similar to
                         <citerefentry><refentrytitle>systemd.timer</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para></listitem>
 
                         <listitem><para>Swap units are very similar to
-                        mount units and encapsulated memory swap
+                        mount units and encapsulate memory swap
                         partitions or files of the operating
                         partitions or files of the operating
-                        systemd. They are described in <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para></listitem>
+                        system. They are described in <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para></listitem>
 
                         <listitem><para>Path units may be used
                         to activate other services when file system
 
                         <listitem><para>Path units may be used
                         to activate other services when file system
 
                 <para>Units are named as their configuration
                 files. Some units have special semantics. A detailed
 
                 <para>Units are named as their configuration
                 files. Some units have special semantics. A detailed
-                list you may find in
+                list is available in
                 <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
 
                 <para>systemd knows various kinds of dependencies,
                 <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
 
                 <para>systemd knows various kinds of dependencies,
                 this.</para>
 
                 <para>Application programs and units (via
                 this.</para>
 
                 <para>Application programs and units (via
-                dependencies) may requests state changes of units. In
+                dependencies) may request state changes of units. In
                 systemd, these requests are encapsulated as 'jobs' and
                 maintained in a job queue. Jobs may succeed or can
                 fail, their execution is ordered based on the ordering
                 systemd, these requests are encapsulated as 'jobs' and
                 maintained in a job queue. Jobs may succeed or can
                 fail, their execution is ordered based on the ordering
 
                 <para>Systemd contains native implementations of
                 various tasks that need to be executed as part of the
 
                 <para>Systemd contains native implementations of
                 various tasks that need to be executed as part of the
-                boot process. For example, it sets the host name or
+                boot process. For example, it sets the hostname or
                 configures the loopback network device. It also sets
                 up and mounts various API file systems, such as
                 <filename>/sys</filename> or
                 configures the loopback network device. It also sets
                 up and mounts various API file systems, such as
                 <filename>/sys</filename> or
                 by systemd are covered by the <ulink
                 url="http://www.freedesktop.org/wiki/Software/systemd/InterfaceStabilityPromise">Interface
                 Stability Promise</ulink>.</para>
                 by systemd are covered by the <ulink
                 url="http://www.freedesktop.org/wiki/Software/systemd/InterfaceStabilityPromise">Interface
                 Stability Promise</ulink>.</para>
+
+                <para>Units may be generated dynamically at boot and
+                system manager reload time, for example based on other
+                configuration files or parameters passed on the kernel
+                command line. For details see the <ulink
+                url="http://www.freedesktop.org/wiki/Software/systemd/Generators">Generators
+                Specification</ulink>.</para>
+
+                <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>
         </refsect1>
 
         <refsect1>
         </refsect1>
 
         <refsect1>
                                 <command>pkg-config systemd
                                 --variable=systemdsystemunitdir</command>. Other
                                 directories checked are
                                 <command>pkg-config systemd
                                 --variable=systemdsystemunitdir</command>. Other
                                 directories checked are
-                                <filename>/usr/local/share/systemd/system</filename>
+                                <filename>/usr/local/lib/systemd/system</filename>
                                 and
                                 and
-                                <filename>/usr/share/systemd/system</filename>. User
+                                <filename>/usr/lib/systemd/system</filename>. User
                                 configuration always takes
                                 precedence. <command>pkg-config
                                 systemd
                                 configuration always takes
                                 precedence. <command>pkg-config
                                 systemd
                                 <command>disable</command> commands of
                                 the
                                 <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                                 <command>disable</command> commands of
                                 the
                                 <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
-                                tool.</para></listitem>
+                                tool. Full list of directories is provided in
+                                <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+                                </para></listitem>
                         </varlistentry>
                 </variablelist>
 
                 <variablelist>
                         <varlistentry>
                         </varlistentry>
                 </variablelist>
 
                 <variablelist>
                         <varlistentry>
-                                <term>Session unit directories</term>
+                                <term>User unit directories</term>
 
                                 <listitem><para>Similar rules apply
 
                                 <listitem><para>Similar rules apply
-                                for the session unit
+                                for the user unit
                                 directories. However, here the <ulink
                                 url="http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG
                                 Base Directory specification</ulink>
                                 directories. However, here the <ulink
                                 url="http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG
                                 Base Directory specification</ulink>
                                 units. Applications should place their
                                 unit files in the directory returned
                                 by <command>pkg-config systemd
                                 units. Applications should place their
                                 unit files in the directory returned
                                 by <command>pkg-config systemd
-                                --variable=systemdsessionunitdir</command>. Global
+                                --variable=systemduserunitdir</command>. Global
                                 configuration is done in the directory
                                 reported by <command>pkg-config
                                 systemd
                                 configuration is done in the directory
                                 reported by <command>pkg-config
                                 systemd
-                                --variable=systemdsessionconfdir</command>. The
+                                --variable=systemduserconfdir</command>. The
                                 <command>enable</command> and
                                 <command>disable</command> commands of
                                 the
                                 <command>enable</command> and
                                 <command>disable</command> commands of
                                 the
                                 tool can handle both global (i.e. for
                                 all users) and private (for one user)
                                 enabling/disabling of
                                 tool can handle both global (i.e. for
                                 all users) and private (for one user)
                                 enabling/disabling of
-                                units.</para></listitem>
+                                units. Full list of directories is provided in
+                                <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+                                </para></listitem>
                         </varlistentry>
                 </variablelist>
 
                         </varlistentry>
                 </variablelist>
 
 
                 <variablelist>
                         <varlistentry>
 
                 <variablelist>
                         <varlistentry>
-                                <term>SIGTERM</term>
+                                <term><constant>SIGTERM</constant></term>
 
                                 <listitem><para>Upon receiving this
                                 signal the systemd system manager
 
                                 <listitem><para>Upon receiving this
                                 signal the systemd system manager
                                 to <command>systemctl
                                 daemon-reexec</command>.</para>
 
                                 to <command>systemctl
                                 daemon-reexec</command>.</para>
 
-                                <para>systemd session managers will
+                                <para>systemd user managers will
                                 start the
                                 <filename>exit.target</filename> unit
                                 when this signal is received. This is
                                 mostly equivalent to
                                 start the
                                 <filename>exit.target</filename> unit
                                 when this signal is received. This is
                                 mostly equivalent to
-                                <command>systemctl --session start
+                                <command>systemctl --user start
                                 exit.target</command>.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                                 exit.target</command>.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGINT</term>
+                                <term><constant>SIGINT</constant></term>
 
                                 <listitem><para>Upon receiving this
                                 signal the systemd system manager will
 
                                 <listitem><para>Upon receiving this
                                 signal the systemd system manager will
                                 <command>systemctl start
                                 ctl-alt-del.target</command>.</para>
 
                                 <command>systemctl start
                                 ctl-alt-del.target</command>.</para>
 
-                                <para>systemd session managers
+                                <para>systemd user managers
                                 treat this signal the same way as
                                 treat this signal the same way as
-                                SIGTERM.</para></listitem>
+                                <constant>SIGTERM</constant>.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGWINCH</term>
+                                <term><constant>SIGWINCH</constant></term>
 
                                 <listitem><para>When this signal is
                                 received the systemd system manager
 
                                 <listitem><para>When this signal is
                                 received the systemd system manager
                                 kbrequest.target</command>.</para>
 
                                 <para>This signal is ignored by
                                 kbrequest.target</command>.</para>
 
                                 <para>This signal is ignored by
-                                systemd session
+                                systemd user
                                 managers.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                                 managers.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGPWR</term>
+                                <term><constant>SIGPWR</constant></term>
 
                                 <listitem><para>When this signal is
                                 received the systemd manager
 
                                 <listitem><para>When this signal is
                                 received the systemd manager
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGUSR1</term>
+                                <term><constant>SIGUSR1</constant></term>
 
                                 <listitem><para>When this signal is
                                 received the systemd manager will try
 
                                 <listitem><para>When this signal is
                                 received the systemd manager will try
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGUSR2</term>
+                                <term><constant>SIGUSR2</constant></term>
 
                                 <listitem><para>When this signal is
                                 received the systemd manager will log
 
                                 <listitem><para>When this signal is
                                 received the systemd manager will log
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGHUP</term>
+                                <term><constant>SIGHUP</constant></term>
 
                                 <listitem><para>Reloads the complete
                                 daemon configuration. This is mostly
 
                                 <listitem><para>Reloads the complete
                                 daemon configuration. This is mostly
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGRTMIN+0</term>
+                                <term><constant>SIGRTMIN+0</constant></term>
 
                                 <listitem><para>Enters default mode, starts the
                                 <filename>default.target</filename>
 
                                 <listitem><para>Enters default mode, starts the
                                 <filename>default.target</filename>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGRTMIN+1</term>
+                                <term><constant>SIGRTMIN+1</constant></term>
 
                                 <listitem><para>Enters rescue mode,
                                 starts the
 
                                 <listitem><para>Enters rescue mode,
                                 starts the
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGRTMIN+2</term>
+                                <term><constant>SIGRTMIN+2</constant></term>
 
                                 <listitem><para>Enters emergency mode,
                                 starts the
 
                                 <listitem><para>Enters emergency mode,
                                 starts the
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGRTMIN+3</term>
+                                <term><constant>SIGRTMIN+3</constant></term>
 
                                 <listitem><para>Halts the machine,
                                 starts the
 
                                 <listitem><para>Halts the machine,
                                 starts the
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGRTMIN+4</term>
+                                <term><constant>SIGRTMIN+4</constant></term>
 
                                 <listitem><para>Powers off the machine,
                                 starts the
 
                                 <listitem><para>Powers off the machine,
                                 starts the
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term>SIGRTMIN+5</term>
+                                <term><constant>SIGRTMIN+5</constant></term>
 
                                 <listitem><para>Reboots the machine,
                                 starts the
 
                                 <listitem><para>Reboots the machine,
                                 starts the
                                 <command>systemctl start
                                 reboot.target</command>.</para></listitem>
                         </varlistentry>
                                 <command>systemctl start
                                 reboot.target</command>.</para></listitem>
                         </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+6</constant></term>
+
+                                <listitem><para>Reboots the machine via kexec,
+                                starts the
+                                <filename>kexec.target</filename>
+                                unit. This is mostly equivalent to
+                                <command>systemctl start
+                                kexec.target</command>.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+13</constant></term>
+
+                                <listitem><para>Immediately halts the machine.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+14</constant></term>
+
+                                <listitem><para>Immediately powers off the machine.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+15</constant></term>
+
+                                <listitem><para>Immediately reboots the machine.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+16</constant></term>
+
+                                <listitem><para>Immediately reboots the machine with kexec.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+20</constant></term>
+
+                                <listitem><para>Enables display of
+                                status messages on the console, as
+                                controlled via
+                                <varname>systemd.show_status=1</varname>
+                                on the kernel command
+                                line.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+21</constant></term>
+
+                                <listitem><para>Disables display of
+                                status messages on the console, as
+                                controlled via
+                                <varname>systemd.show_status=0</varname>
+                                on the kernel command
+                                line.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+22</constant></term>
+                                <term><constant>SIGRTMIN+23</constant></term>
+
+                                <listitem><para>Sets the log level to
+                                <literal>debug</literal>
+                                (or <literal>info</literal> on
+                                <constant>SIGRTMIN+23</constant>), as
+                                controlled via
+                                <varname>systemd.log_level=debug</varname>
+                                (or <varname>systemd.log_level=info</varname>
+                                on <constant>SIGRTMIN+23</constant>) on
+                                the kernel command
+                                line.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+24</constant></term>
+
+                                <listitem><para>Immediately exits the
+                                manager (only available for --user
+                                instances).</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><constant>SIGRTMIN+26</constant></term>
+                                <term><constant>SIGRTMIN+27</constant></term>
+                                <term><constant>SIGRTMIN+28</constant></term>
+                                <term><constant>SIGRTMIN+29</constant></term>
+
+                                <listitem><para>Sets the log level to
+                                <literal>journal-or-kmsg</literal>
+                                (or <literal>console</literal> on
+                                <constant>SIGRTMIN+27</constant>,
+                                <literal>kmsg</literal> on
+                                <constant>SIGRTMIN+28</constant>,
+                                or <literal>syslog-or-kmsg</literal>
+                                on <constant>SIGRTMIN+29</constant>), as
+                                controlled via
+                                <varname>systemd.log_target=journal-or-kmsg</varname>
+                                (or <varname>systemd.log_target=console</varname>
+                                on <constant>SIGRTMIN+27</constant>,
+                                <varname>systemd.log_target=kmsg</varname>
+                                on <constant>SIGRTMIN+28</constant>,
+                                or
+                                <varname>systemd.log_target=syslog-or-kmsg</varname>
+                                on <constant>SIGRTMIN+29</constant>) on
+                                the kernel command
+                                line.</para></listitem>
+                        </varlistentry>
                 </variablelist>
         </refsect1>
 
         <refsect1>
                 <title>Environment</title>
 
                 </variablelist>
         </refsect1>
 
         <refsect1>
                 <title>Environment</title>
 
-                <variablelist>
+                <variablelist class='environment-variables'>
                         <varlistentry>
                                 <term><varname>$SYSTEMD_LOG_LEVEL</varname></term>
                                 <listitem><para>systemd reads the
                         <varlistentry>
                                 <term><varname>$SYSTEMD_LOG_LEVEL</varname></term>
                                 <listitem><para>systemd reads the
                                 <term><varname>$XDG_DATA_HOME</varname></term>
                                 <term><varname>$XDG_DATA_DIRS</varname></term>
 
                                 <term><varname>$XDG_DATA_HOME</varname></term>
                                 <term><varname>$XDG_DATA_DIRS</varname></term>
 
-                                <listitem><para>The systemd session
+                                <listitem><para>The systemd user
                                 manager uses these variables in
                                 accordance to the <ulink
                                 url="http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG
                                 manager uses these variables in
                                 accordance to the <ulink
                                 url="http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG
         <refsect1>
                 <title>Kernel Command Line</title>
 
         <refsect1>
                 <title>Kernel Command Line</title>
 
-                <para>When run as system instance systemd parses a few kernel command line arguments:</para>
-
-                <variablelist>
+                <para>When run as system instance systemd parses a
+                number of kernel command line
+                arguments<footnote><para>If run inside a Linux
+                container these arguments may be passed as command
+                line arguments to systemd itself, next to any of the
+                command line options listed in the Options section
+                above. If run outside of Linux containers, these
+                arguments are parsed from
+                <filename>/proc/cmdline</filename>
+                instead.</para></footnote>:</para>
+
+                <variablelist class='kernel-commandline-options'>
                         <varlistentry>
                                 <term><varname>systemd.unit=</varname></term>
                         <varlistentry>
                                 <term><varname>systemd.unit=</varname></term>
+                                <term><varname>rd.systemd.unit=</varname></term>
 
                                 <listitem><para>Overrides the unit to
                                 activate on boot. Defaults to
 
                                 <listitem><para>Overrides the unit to
                                 activate on boot. Defaults to
                                 <filename>rescue.target</filename> or
                                 <filename>emergency.service</filename>. See
                                 <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
                                 <filename>rescue.target</filename> or
                                 <filename>emergency.service</filename>. See
                                 <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
-                                for details about these
-                                units.</para></listitem>
+                                for details about these units. The
+                                option prefixed with
+                                <literal>rd.</literal> is honored
+                                only in the initial RAM disk (initrd),
+                                while the one that isn't prefixed only
+                                in the main system.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
                                 <listitem><para>Takes a boolean
                                 argument. If <option>true</option>
                                 systemd spawns a shell when it
                                 <listitem><para>Takes a boolean
                                 argument. If <option>true</option>
                                 systemd spawns a shell when it
-                                crashes. Otherwise no core dump is
-                                created. Defaults to
+                                crashes. Otherwise no shell is
+                                spawned. Defaults to
                                 <option>false</option>, for security
                                 reasons, as the shell is not protected
                                 by any password
                                 <option>false</option>, for security
                                 reasons, as the shell is not protected
                                 by any password
                                 argument. If positive systemd
                                 activates the specified virtual
                                 terminal when it crashes. Defaults to
                                 argument. If positive systemd
                                 activates the specified virtual
                                 terminal when it crashes. Defaults to
-                                <literal>-1</literal>.</para></listitem>
+                                <constant>-1</constant>.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
                                 argument. If <option>true</option>
                                 shows terse service status updates on
                                 the console during bootup. Defaults to
                                 argument. If <option>true</option>
                                 shows terse service status updates on
                                 the console during bootup. Defaults to
-                                <option>true</option>.</para></listitem>
-                        </varlistentry>
-
-                        <varlistentry>
-                                <term><varname>systemd.sysv_console=</varname></term>
-
-                                <listitem><para>Takes a boolean
-                                argument. If <option>true</option>
-                                output of SysV init scripts will be
-                                directed to the console. Defaults to
                                 <option>true</option>, unless
                                 <option>quiet</option> is passed as
                                 kernel command line option in which
                                 <option>true</option>, unless
                                 <option>quiet</option> is passed as
                                 kernel command line option in which
                                 environment variables described above.</para></listitem>
                         </varlistentry>
 
                                 environment variables described above.</para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><varname>systemd.default_standard_output=</varname></term>
+                                <term><varname>systemd.default_standard_error=</varname></term>
+                                <listitem><para>Controls default
+                                standard output and error output for
+                                services, with the same effect as the
+                                <option>--default-standard-output=</option>
+                                and <option>--default-standard-error=</option>
+                                command line arguments described
+                                above, respectively.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>systemd.setenv=</varname></term>
+
+                                <listitem><para>Takes a string
+                                argument in the form
+                                VARIABLE=VALUE. May be used to set
+                                environment variables for the init
+                                process and all its children at boot
+                                time. May be used more than once to
+                                set multiple variables. If the equal
+                                sign and variable are missing it unsets
+                                an environment variable which might be
+                                passed in from the initial ram
+                                disk.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>quiet</varname></term>
+
+                                <listitem><para>Turn off
+                                status output at boot, much like
+                                <varname>systemd.show_status=false</varname>
+                                would. Note that this option is also
+                                read by the kernel itself and disables
+                                kernel log output. Passing this option
+                                hence turns off the usual output from
+                                both the system manager and the kernel.
+                                </para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>debug</varname></term>
+
+                                <listitem><para>Turn on debugging
+                                output. This is equivalent to
+                                <varname>systemd.log_level=debug</varname>.
+                                Note that this option is also read by
+                                the kernel itself and enables kernel
+                                debug output.  Passing this option
+                                hence turns on the debug output from
+                                both the system manager and the
+                                kernel.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>emergency</varname></term>
+
+                                <listitem><para>Boot into emergency
+                                mode. This is equivalent to
+                                <varname>systemd.unit=emergency.target</varname>
+                                and provided for compatibility
+                                reasons and to be easier to type.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>single</varname></term>
+                                <term><varname>s</varname></term>
+                                <term><varname>S</varname></term>
+                                <term><varname>1</varname></term>
+
+                                <listitem><para>Boot into rescue
+                                mode. This is equivalent to
+                                <varname>systemd.unit=rescue.target</varname>
+                                and provided for compatibility reasons
+                                and to be easier to
+                                type.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>2</varname></term>
+                                <term><varname>3</varname></term>
+                                <term><varname>4</varname></term>
+                                <term><varname>5</varname></term>
+
+                                <listitem><para>Boot into the
+                                specified legacy SysV runlevel. These
+                                are equivalent to
+                                <varname>systemd.unit=runlevel2.target</varname>,
+                                <varname>systemd.unit=runlevel3.target</varname>,
+                                <varname>systemd.unit=runlevel4.target</varname>,
+                                and <varname>systemd.unit=runlevel5.target</varname>, respectively,
+                                and provided for compatibility reasons
+                                and to be easier to
+                                type.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>locale.LANG=</varname></term>
+                                <term><varname>locale.LANGUAGE=</varname></term>
+                                <term><varname>locale.LC_CTYPE=</varname></term>
+                                <term><varname>locale.LC_NUMERIC=</varname></term>
+                                <term><varname>locale.LC_TIME=</varname></term>
+                                <term><varname>locale.LC_COLLATE=</varname></term>
+                                <term><varname>locale.LC_MONETARY=</varname></term>
+                                <term><varname>locale.LC_MESSAGES=</varname></term>
+                                <term><varname>locale.LC_PAPER=</varname></term>
+                                <term><varname>locale.LC_NAME=</varname></term>
+                                <term><varname>locale.LC_ADDRESS=</varname></term>
+                                <term><varname>locale.LC_TELEPHONE=</varname></term>
+                                <term><varname>locale.LC_MEASUREMENT=</varname></term>
+                                <term><varname>locale.LC_IDENTIFICATION=</varname></term>
+
+                                <listitem><para>Set the system locale
+                                to use. This overrides the settings in
+                                <filename>/etc/locale.conf</filename>. For
+                                more information see
+                                <citerefentry><refentrytitle>locale.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                                and
+                                <citerefentry><refentrytitle>locale</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
+                                </para></listitem>
+                        </varlistentry>
                 </variablelist>
                 </variablelist>
+
+                <para>For other kernel command line parameters
+                understood by components of the core OS, please refer
+                to
+                <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
         </refsect1>
 
         <refsect1>
         </refsect1>
 
         <refsect1>
 
                 <variablelist>
                         <varlistentry>
 
                 <variablelist>
                         <varlistentry>
-                                <term><filename>@/org/freedesktop/systemd1/notify</filename></term>
+                                <term><filename>/run/systemd/notify</filename></term>
 
                                 <listitem><para>Daemon status
 
                                 <listitem><para>Daemon status
-                                notification socket. This is an AF_UNIX
-                                datagram socket in the Linux abstract
-                                namespace, and is used to implement
-                                the daemon notification logic as
-                                implemented by
+                                notification socket. This is an
+                                <constant>AF_UNIX</constant> datagram socket and is used to
+                                implement the daemon notification
+                                logic as implemented by
                                 <citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
 
                         </varlistentry>
 
                         <varlistentry>
                                 <citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
 
                         </varlistentry>
 
                         <varlistentry>
-                                <term><filename>@/org/freedesktop/systemd1/logger</filename></term>
-
-                                <listitem><para>Used internally by the
-                                <filename>systemd-logger.service</filename>
-                                unit to connect STDOUT and/or STDERR
-                                of spawned processes to
-                                <citerefentry><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>
-                                or the kernel log buffer. This is an
-                                AF_UNIX stream socket in the Linux
-                                abstract namespace.</para></listitem>
-                        </varlistentry>
-
-                        <varlistentry>
-                                <term><filename>@/org/freedesktop/systemd1/shutdown</filename></term>
+                                <term><filename>/run/systemd/shutdownd</filename></term>
 
                                 <listitem><para>Used internally by the
                                 <citerefentry><refentrytitle>shutdown</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                                 tool to implement delayed
 
                                 <listitem><para>Used internally by the
                                 <citerefentry><refentrytitle>shutdown</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                                 tool to implement delayed
-                                shutdowns. This is an AF_UNIX datagram
-                                socket in the Linux abstract
-                                namespace.</para></listitem>
+                                shutdowns. This is an <constant>AF_UNIX</constant> datagram
+                                socket.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term><filename>@/org/freedesktop/systemd1/private</filename></term>
+                                <term><filename>/run/systemd/private</filename></term>
 
                                 <listitem><para>Used internally as
                                 communication channel between
                                 <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                                 and the systemd process. This is an
 
                                 <listitem><para>Used internally as
                                 communication channel between
                                 <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                                 and the systemd process. This is an
-                                AF_UNIX stream socket in the Linux
-                                abstract namespace. This interface is
-                                private to systemd and should not be
-                                used in external
+                                <constant>AF_UNIX</constant> stream socket. This interface
+                                is private to systemd and should not
+                                be used in external
                                 projects.</para></listitem>
                         </varlistentry>
 
                                 projects.</para></listitem>
                         </varlistentry>
 
         <refsect1>
                 <title>See Also</title>
                 <para>
         <refsect1>
                 <title>See Also</title>
                 <para>
+                        <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>locale.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
-                        <citerefentry><refentrytitle>systemadm</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd-notify</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd-notify</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
-                        <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-                        <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+                        <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>bootup</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
                 </para>
         </refsect1>
 
                 </para>
         </refsect1>