man: document the _SYSTEMD_USER_UNIT journal field

[elogind.git] / man / systemd.special.xml

diff --git a/man/systemd.special.xml b/man/systemd.special.xml
index e81e99e44efe07ce4572ae6c9c8d1abec34d3e37..6acba91428f8dd719af5da266e6873c644df81a4 100644 (file)
--- a/man/systemd.special.xml
+++ b/man/systemd.special.xml
@@ -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/>.
 -->
 


@@ -44,42 +44,58 @@
 
         <refnamediv>
                 <refname>systemd.special</refname>
 
         <refnamediv>
                 <refname>systemd.special</refname>

-                <refpurpose>special systemd units</refpurpose>
+                <refpurpose>Special systemd units</refpurpose>

         </refnamediv>
 
         <refsynopsisdiv>
         </refnamediv>
 
         <refsynopsisdiv>

-                <para><filename>basic.target</filename></para>
-                <para><filename>ctrl-alt-del.target</filename></para>
-                <para><filename>default.target</filename></para>
-                <para><filename>emergency.service</filename></para>
-                <para><filename>graphical.target</filename></para>
-                <para><filename>halt.target</filename></para>
-                <para><filename>kbrequest.target</filename></para>
-                <para><filename>local-fs.target</filename></para>
-                <para><filename>multi-user.target</filename></para>
-                <para><filename>network.target</filename></para>
-                <para><filename>nss-lookup.target</filename></para>
-                <para><filename>poweroff.target</filename></para>
-                <para><filename>reboot.target</filename></para>
-                <para><filename>remote-fs.target</filename></para>
-                <para><filename>rescue.target</filename></para>
-                <para><filename>rpcbind.target</filename></para>
-                <para><filename>rtc-set.target</filename></para>
-                <para><filename>runlevel0.target</filename>,
-                        <filename>runlevel0.target</filename>,
-                        <filename>runlevel1.target</filename>,
-                        <filename>runlevel2.target</filename>,
-                        <filename>runlevel3.target</filename>,
-                        <filename>runlevel4.target</filename>,
-                        <filename>runlevel5.target</filename>,
-                        <filename>runlevel6.target</filename></para>
-                <para><filename>shutdown.target</filename></para>
-                <para><filename>sigpwr.target</filename></para>
-                <para><filename>sockets.target</filename></para>
-                <para><filename>swap.target</filename></para>
-                <para><filename>syslog.target</filename></para>
-                <para><filename>systemd-initctl.service</filename>, <filename>systemd-initctl.socket</filename></para>
-                <para><filename>systemd-logger.service</filename>, <filename>systemd-logger.socket</filename></para>
+                <para><filename>basic.target</filename>,
+                <filename>bluetooth.target</filename>,
+                <filename>ctrl-alt-del.target</filename>,
+                <filename>cryptsetup.target</filename>,
+                <filename>dbus.service</filename>,
+                <filename>dbus.socket</filename>,
+                <filename>default.target</filename>,
+                <filename>display-manager.service</filename>,
+                <filename>emergency.target</filename>,
+                <filename>exit.target</filename>,
+                <filename>final.target</filename>,
+                <filename>getty.target</filename>,
+                <filename>graphical.target</filename>,
+                <filename>halt.target</filename>,
+                <filename>hibernate.target</filename>,
+                <filename>hybrid-sleep.target</filename>,
+                <filename>kbrequest.target</filename>,
+                <filename>kexec.target</filename>,
+                <filename>local-fs.target</filename>,
+                <filename>local-fs-pre.target</filename>,
+                <filename>multi-user.target</filename>,
+                <filename>network.target</filename>,
+                <filename>nss-lookup.target</filename>,
+                <filename>nss-user-lookup.target</filename>,
+                <filename>poweroff.target</filename>,
+                <filename>printer.target</filename>,
+                <filename>reboot.target</filename>,
+                <filename>remote-fs.target</filename>,
+                <filename>remote-fs-pre.target</filename>,
+                <filename>rescue.target</filename>,
+                <filename>rpcbind.target</filename>,
+                <filename>runlevel2.target</filename>,
+                <filename>runlevel3.target</filename>,
+                <filename>runlevel4.target</filename>,
+                <filename>runlevel5.target</filename>,
+                <filename>shutdown.target</filename>,
+                <filename>sigpwr.target</filename>,
+                <filename>sleep.target</filename>,
+                <filename>smartcard.target</filename>,
+                <filename>sockets.target</filename>,
+                <filename>sound.target</filename>,
+                <filename>suspend.target</filename>,
+                <filename>swap.target</filename>,
+                <filename>sysinit.target</filename>,
+                <filename>syslog.socket</filename>,
+                <filename>system-update.target</filename>,
+                <filename>time-sync.target</filename>,
+                <filename>umount.target</filename></para>

         </refsynopsisdiv>
 
         <refsect1>
         </refsynopsisdiv>
 
         <refsect1>


@@ -105,16 +121,25 @@
                                         target unit to all SysV
                                         service units configured for
                                         runlevel 1 to 5.</para>
                                         target unit to all SysV
                                         service units configured for
                                         runlevel 1 to 5.</para>

-                                        <para>systemd automatically
-                                        adds dependencies of the types
-                                        Wants and After for all
-                                        SysV service units configured
-                                        for runlevels that are not 0
-                                        to 6 to this target unit.
-                                        This covers the special
-                                        boot-up runlevels some
-                                        distributions have, such as S
-                                        or b.</para>
+                                        <para>Usually this should pull-in
+                                        all sockets, mount points,
+                                        swap devices and other basic
+                                        initialization necessary for
+                                        the general purpose
+                                        daemons. Most normal daemons
+                                        should have dependencies of
+                                        type After and Requires on
+                                        this unit.</para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>bluetooth.target</filename></term>
+                                <listitem>
+                                        <para>This target is started
+                                        automatically as soon as a
+                                        bluetooth controller is
+                                        plugged in or becomes
+                                        available at boot.</para>

                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>


@@ -129,6 +154,38 @@
                                         <filename>reboot.target</filename>.</para>
                                 </listitem>
                         </varlistentry>
                                         <filename>reboot.target</filename>.</para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>cryptsetup.target</filename></term>
+                                <listitem>
+                                        <para>A target that pulls in
+                                        setup services for all
+                                        encrypted block
+                                        devices.</para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>dbus.service</filename></term>
+                                <listitem>
+                                        <para>A special unit for the
+                                        D-Bus system bus. As soon as
+                                        this service is fully started
+                                        up systemd will connect to it
+                                        and register its
+                                        service.</para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>dbus.socket</filename></term>
+                                <listitem>
+                                        <para>A special unit for the
+                                        D-Bus system bus socket. All
+                                        units with
+                                        <literal>Type=dbus</literal>
+                                        automatically gain a
+                                        dependency on this
+                                        unit.</para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>default.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>default.target</filename></term>
                                 <listitem>


@@ -141,25 +198,58 @@
                                         <filename>graphical.target</filename>.</para>
                                         <para>The default unit systemd
                                         starts at bootup can be
                                         <filename>graphical.target</filename>.</para>
                                         <para>The default unit systemd
                                         starts at bootup can be

-                                        overriden with the
-                                        <varname>systemd.default=</varname>
+                                        overridden with the
+                                        <varname>systemd.unit=</varname>

                                         kernel command line option.</para>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                         kernel command line option.</para>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>

-                                <term><filename>emergency.service</filename></term>
+                                <term><filename>display-manager.service</filename></term>

                                 <listitem>
                                 <listitem>

-                                        <para>A special service unit
+                                        <para>The display manager
+                                        service. Usually this should
+                                        be aliased (symlinked) to
+                                        <filename>gdm.service</filename>
+                                        or a similar display manager
+                                        service.</para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>emergency.target</filename></term>
+                                <listitem>
+                                        <para>A special target unit

                                         that starts an emergency
                                         shell on the main
                                         console. This unit is supposed
                                         to be used with the kernel
                                         command line option
                                         that starts an emergency
                                         shell on the main
                                         console. This unit is supposed
                                         to be used with the kernel
                                         command line option

-                                        <varname>systemd.default=</varname>
+                                        <varname>systemd.unit=</varname>

                                         and has otherwise little use.
                                         </para>
                                 </listitem>
                         </varlistentry>
                                         and has otherwise little use.
                                         </para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>final.target</filename></term>
+                                <listitem>
+                                        <para>A special target unit
+                                        that is used during the
+                                        shutdown logic and may be used
+                                        to pull in late services after
+                                        all normal services are
+                                        already terminated and all
+                                        mounts unmounted.
+                                        </para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>getty.target</filename></term>
+                                <listitem>
+                                        <para>A special target unit
+                                        that pulls in all local TTY
+                                        <filename>getty</filename> instances.
+                                        </para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>graphical.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>graphical.target</filename></term>
                                 <listitem>


@@ -176,6 +266,24 @@
                                         during installation.</para>
                                 </listitem>
                         </varlistentry>
                                         during installation.</para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>hibernate.target</filename></term>
+                                <listitem>
+                                        <para>A special target unit
+                                        for hibernating the
+                                        system. This pulls in
+                                        <filename>sleep.target</filename>.</para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>hybrid-sleep.target</filename></term>
+                                <listitem>
+                                        <para>A special target unit
+                                        for hibernating and suspending the
+                                        system at the same time. This pulls in
+                                        <filename>sleep.target</filename>.</para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>halt.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>halt.target</filename></term>
                                 <listitem>


@@ -198,6 +306,17 @@
                                         <filename>rescue.target</filename>.</para>
                                 </listitem>
                         </varlistentry>
                                         <filename>rescue.target</filename>.</para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>kexec.target</filename></term>
+                                <listitem>
+                                        <para>A special target unit
+                                        for shutting down and rebooting the system via kexec.</para>
+
+                                        <para>Applications wanting to
+                                        reboot the system with kexec should start
+                                        this unit.</para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>local-fs.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>local-fs.target</filename></term>
                                 <listitem>


@@ -212,18 +331,21 @@
                                         mounts listed in
                                         <filename>/etc/fstab</filename>
                                         that have the
                                         mounts listed in
                                         <filename>/etc/fstab</filename>
                                         that have the

-                                        <literal>auto</literal> and
-                                        <literal>comment=systemd.mount</literal>
+                                        <option>auto</option> and
+                                        <option>comment=systemd.mount</option>

                                         mount options set.</para>
                                         mount options set.</para>

-
-                                        <para>systemd automatically
-                                        adds dependencies of type
-                                        After for this target unit to
-                                        all SysV init script service
-                                        units with an LSB header
-                                        referring to the
-                                        <literal>$local_fs</literal>
-                                        facility.</para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>local-fs-pre.target</filename></term>
+                                <listitem>
+                                        <para>This target unit is
+                                        automatically ordered before
+                                        all local mount points marked
+                                        with <option>auto</option>
+                                        (see above). It can be used to
+                                        execute certain units before
+                                        all local mounts.</para>

                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>


@@ -253,21 +375,53 @@
                                         referring to the
                                         <literal>$network</literal>
                                         facility.</para>
                                         referring to the
                                         <literal>$network</literal>
                                         facility.</para>

+
+                                        <para>This unit is supposed to
+                                        indicate when the network is
+                                        "up", but it is only very
+                                        loosely defined what that is
+                                        supposed to mean. Also see <ulink
+                                        url="http://www.freedesktop.org/wiki/Software/systemd/NetworkTarget">Running
+                                        Services After the Network is
+                                        up</ulink> for more
+                                        information.</para>

                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><filename>nss-lookup.target</filename></term>
                                 <listitem>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><filename>nss-lookup.target</filename></term>
                                 <listitem>

-                                        <para>systemd automatically
-                                        adds dependencies of type
-                                        After for this target unit to
-                                        all SysV init script service
-                                        units with an LSB header
-                                        referring to the
+                                        <para>A target that should be
+                                        used as synchronization point
+                                        for all host/network name
+                                        service lookups. Note that
+                                        this is independent of
+                                        user/group name lookups for
+                                        which
+                                        <filename>nss-user-lookup.target</filename>
+                                        should be used. systemd
+                                        automatically adds
+                                        dependencies of type After for
+                                        this target unit to all SysV
+                                        init script service units with
+                                        an LSB header referring to the

                                         <literal>$named</literal>
                                         facility.</para>
                                 </listitem>
                         </varlistentry>
                                         <literal>$named</literal>
                                         facility.</para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>nss-user-lookup.target</filename></term>
+                                <listitem>
+                                        <para>A target that should be
+                                        used as synchronization point
+                                        for all user/group name
+                                        service lookups. Note that
+                                        this is independent of
+                                        host/network name lookups for
+                                        which
+                                        <filename>nss-lookup.target</filename>
+                                        should be used. </para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>poweroff.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>poweroff.target</filename></term>
                                 <listitem>


@@ -283,6 +437,16 @@
                                         unit, for compatibility with SysV.</para>
                                 </listitem>
                         </varlistentry>
                                         unit, for compatibility with SysV.</para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>printer.target</filename></term>
+                                <listitem>
+                                        <para>This target is started
+                                        automatically as soon as a
+                                        printer is plugged in or
+                                        becomes available at
+                                        boot.</para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>reboot.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>reboot.target</filename></term>
                                 <listitem>


@@ -312,10 +476,22 @@
                                         all SysV init script service
                                         units with an LSB header
                                         referring to the
                                         all SysV init script service
                                         units with an LSB header
                                         referring to the

-                                        <literal>$remote-fs</literal>
+                                        <literal>$remote_fs</literal>

                                         facility.</para>
                                 </listitem>
                         </varlistentry>
                                         facility.</para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>remote-fs-pre.target</filename></term>
+                                <listitem>
+                                        <para>This target unit is
+                                        automatically ordered before
+                                        all remote mount points marked
+                                        with <option>auto</option>
+                                        (see above). It can be used to
+                                        execute certain units before
+                                        all remote mounts.</para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>rescue.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>rescue.target</filename></term>
                                 <listitem>


@@ -337,114 +513,27 @@
                                         all SysV init script service
                                         units with an LSB header
                                         referring to the
                                         all SysV init script service
                                         units with an LSB header
                                         referring to the

-                                        <literal>$rpcbind</literal>
-                                        facility.</para>
-                                </listitem>
-                        </varlistentry>
-                        <varlistentry>
-                                <term><filename>rtc-set.target</filename></term>
-                                <listitem>
-                                        <para>systemd automatically
-                                        adds dependencies of type
-                                        After for this target unit to
-                                        all SysV init script service
-                                        units with an LSB header
-                                        referring to the
-                                        <literal>$time</literal>
+                                        <literal>$portmap</literal>

                                         facility.</para>
                                 </listitem>
                         </varlistentry>
                                         facility.</para>
                                 </listitem>
                         </varlistentry>

-                        <varlistentry>
-                                <term><filename>runlevel0.target</filename></term>
-                                <listitem>
-                                        <para>This is a target that is
-                                        called whever the SysV
-                                        compatibility code asks for
-                                        runlevel 0. This is an alias
-                                        for
-                                        <filename>poweroff.target</filename>,
-                                        for compatibility with
-                                        SysV.</para>
-                                </listitem>
-                        </varlistentry>
-                        <varlistentry>
-                                <term><filename>runlevel1.target</filename></term>
-                                <listitem>
-                                        <para>This is a target that is
-                                        called whever the SysV
-                                        compatibility code asks for
-                                        runlevel 1. This is an alias
-                                        for
-                                        <filename>rescue.target</filename>,
-                                        for compatibility with
-                                        SysV.</para>
-                                </listitem>
-                        </varlistentry>

                         <varlistentry>
                                 <term><filename>runlevel2.target</filename></term>
                         <varlistentry>
                                 <term><filename>runlevel2.target</filename></term>

-                                <listitem>
-                                        <para>This is a target that is
-                                        called whever the SysV
-                                        compatibility code asks for
-                                        runlevel 2. It is a good idea
-                                        to make this an alias for
-                                        (i.e. symlink to)
-                                        <filename>multi-user.target</filename>.</para>
-                                </listitem>
-                        </varlistentry>
-                        <varlistentry>

                                 <term><filename>runlevel3.target</filename></term>
                                 <term><filename>runlevel3.target</filename></term>

-                                <listitem>
-                                        <para>This is a target that is
-                                        called whever the SysV
-                                        compatibility code asks for
-                                        runlevel 3. It is a good idea
-                                        to make this an alias for
-                                        (i.e. symlink to)
-                                        <filename>multi-user.target</filename>
-                                        or
-                                        <filename>graphical.target</filename>.</para>
-                                </listitem>
-                        </varlistentry>
-                        <varlistentry>

                                 <term><filename>runlevel4.target</filename></term>
                                 <term><filename>runlevel4.target</filename></term>

-                                <listitem>
-                                        <para>This is a target that is
-                                        called whever the SysV
-                                        compatibility code asks for
-                                        runlevel 4. It is a good idea
-                                        to make this an alias for
-                                        (i.e. symlink to)
-                                        <filename>multi-user.target</filename>
-                                        or
-                                        <filename>graphical.target</filename>.</para>
-                                </listitem>
-                        </varlistentry>
-                        <varlistentry>

                                 <term><filename>runlevel5.target</filename></term>
                                 <listitem>
                                 <term><filename>runlevel5.target</filename></term>
                                 <listitem>

-                                        <para>This is a target that is
-                                        called whever the SysV
+                                        <para>These are targets that
+                                        are called whenever the SysV

                                         compatibility code asks for
                                         compatibility code asks for

-                                        runlevel 5. It is a good idea
-                                        to make this an alias for
+                                        runlevel 2, 3, 4, 5,
+                                        respectively. It is a good
+                                        idea to make this an alias for

                                         (i.e. symlink to)
                                         <filename>multi-user.target</filename>
                                         (i.e. symlink to)
                                         <filename>multi-user.target</filename>

-                                        or
-                                        <filename>graphical.target</filename>.</para>
-                                </listitem>
-                        </varlistentry>
-                        <varlistentry>
-                                <term><filename>runlevel6.target</filename></term>
-                                <listitem>
-                                        <para>This is a target that is
-                                        called whever the SysV
-                                        compatibility code asks for
-                                        runlevel 6. This is an alias
-                                        for
-                                        <filename>reboot.target</filename>,
-                                        for compatibility with
-                                        SysV.</para>
+                                        (for runlevel 2) or
+                                        <filename>graphical.target</filename>
+                                        (the others).</para>

                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>


@@ -458,8 +547,10 @@
                                         terminated on system shutdown
                                         shall add Conflicts
                                         dependencies to this unit for
                                         terminated on system shutdown
                                         shall add Conflicts
                                         dependencies to this unit for

-                                        their service unit during
-                                        installation.</para>
+                                        their service unit, which is
+                                        implicitly done when
+                                        <varname>DefaultDependencies=yes</varname>
+                                        is set (the default).</para>

 
                                         <para>systemd automatically
                                         adds dependencies of type
 
                                         <para>systemd automatically
                                         adds dependencies of type


@@ -481,6 +572,28 @@
                                         power fails.</para>
                                 </listitem>
                         </varlistentry>
                                         power fails.</para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>sleep.target</filename></term>
+                                <listitem>
+                                        <para>A special target unit
+                                        that is pulled in by
+                                        <filename>suspend.target</filename>,
+                                        <filename>hibernate.target</filename> and <filename>hybrid-sleep.target</filename>
+                                        and may be used to hook units
+                                        into the sleep state
+                                        logic.</para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>smartcard.target</filename></term>
+                                <listitem>
+                                        <para>This target is started
+                                        automatically as soon as a
+                                        smartcard controller is
+                                        plugged in or becomes
+                                        available at boot.</para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>sockets.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>sockets.target</filename></term>
                                 <listitem>


@@ -495,6 +608,25 @@
                                         during installation.</para>
                                 </listitem>
                         </varlistentry>
                                         during installation.</para>
                                 </listitem>
                         </varlistentry>

+                        <varlistentry>
+                                <term><filename>sound.target</filename></term>
+                                <listitem>
+                                        <para>This target is started
+                                        automatically as soon as a
+                                        sound card is plugged in or
+                                        becomes available at
+                                        boot.</para>
+                                </listitem>
+                        </varlistentry>
+                        <varlistentry>
+                                <term><filename>suspend.target</filename></term>
+                                <listitem>
+                                        <para>A special target unit
+                                        for suspending the
+                                        system. This pulls in
+                                        <filename>sleep.target</filename>.</para>
+                                </listitem>
+                        </varlistentry>

                         <varlistentry>
                                 <term><filename>swap.target</filename></term>
                                 <listitem>
                         <varlistentry>
                                 <term><filename>swap.target</filename></term>
                                 <listitem>


@@ -505,99 +637,139 @@
                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>

-                                <term><filename>syslog.target</filename></term>
+                                <term><filename>sysinit.target</filename></term>

                                 <listitem>
                                 <listitem>

+                                        <para>A special target unit
+                                        covering early boot-up scripts.</para>

                                         <para>systemd automatically
                                         <para>systemd automatically

-                                        adds dependencies of type
-                                        After for this target unit to
-                                        all SysV init script service
-                                        units with an LSB header
-                                        referring to the
-                                        <literal>$syslog</literal>
-                                        facility.</para>
-
-                                        <para>Administrators should
-                                        ensure that this target pulls
-                                        in a service unit with the
-                                        name or alias of
-                                        <filename>@SPECIAL_SYSLOG_SERVICE@</filename>
-                                        (or a socket unit that
-                                        activates this
-                                        service).</para>
+                                        adds dependencies of the types
+                                        Wants and After for all
+                                        SysV service units configured
+                                        for runlevels that are not 0
+                                        to 6 to this target unit.
+                                        This covers the special
+                                        boot-up runlevels some
+                                        distributions have, such as S
+                                        or b.</para>

                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>

-                                <term><filename>systemd-initctl.service</filename></term>
+                                <term><filename>syslog.socket</filename></term>

                                 <listitem>
                                 <listitem>

-                                        <para>This provides
-                                        compatibility with the SysV
-                                        /dev/initctl file system FIFO
-                                        for communication with the
-                                        init system.</para>
-                                        <para>This is a
-                                        socket-activated service, see
-                                        <filename>system-initctl.socket</filename>.</para>
+                                        <para>The socket unit
+                                        syslog implementations should
+                                        listen on. All userspace log
+                                        messages will be made
+                                        available on this socket. For
+                                        more information about syslog
+                                        integration, please consult
+                                        the <ulink
+                                        url="http://www.freedesktop.org/wiki/Software/systemd/syslog">Syslog
+                                        Interface</ulink>
+                                        document.</para>

                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>

-                                <term><filename>systemd-initctl.socket</filename></term>
+                                <term><filename>system-update.target</filename></term>

                                 <listitem>
                                 <listitem>

-                                        <para>Socket activation unit
-                                        for
-                                        <filename>system-initctl.service</filename>.</para>
+                                        <para>A special target unit
+                                        that is used for off-line
+                                        system updates.
+                                        <citerefentry><refentrytitle>systemd-system-update-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                                        will redirect the boot process
+                                        to this target if
+                                        <filename>/system-update</filename>
+                                        exists. For more information
+                                        see the <ulink
+                                        url="http://freedesktop.org/wiki/Software/systemd/SystemUpdates">System
+                                        Updates
+                                        Specification</ulink>.</para>

                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>

-                                <term><filename>systemd-logger.service</filename></term>
+                                <term><filename>time-sync.target</filename></term>

                                 <listitem>
                                 <listitem>

-                                        <para>This is internally used
-                                        by systemd to provide syslog
-                                        logging to the processes it
-                                        maintains.</para>
-                                        <para>This is a
-                                        socket-activated service, see
-                                        <filename>system-logger.socket</filename>.</para>
+                                        <para>systemd automatically
+                                        adds dependencies of type
+                                        After for this target unit to
+                                        all SysV init script service
+                                        units with an LSB header
+                                        referring to the
+                                        <literal>$time</literal>
+                                        facility.</para>

                                 </listitem>
                         </varlistentry>
                         <varlistentry>
                                 </listitem>
                         </varlistentry>
                         <varlistentry>

-                                <term><filename>systemd-logger.socket</filename></term>
+                                <term><filename>umount.target</filename></term>

                                 <listitem>
                                 <listitem>

-                                        <para>Socket activation unit
-                                        for
-                                        <filename>system-logger.service</filename>. systemd
-                                        will automatically add
-                                        dependencies of types Requires
-                                        and After to all units that
-                                        have been configured for
-                                        stdout or stderr to be
-                                        connected to syslog or the
-                                        kernel log buffer.</para>
+                                        <para>A special target unit
+                                        that umounts all mount and
+                                        automount points on system
+                                        shutdown.</para>
+
+                                        <para>Mounts that shall be
+                                        unmounted on system shutdown
+                                        shall add Conflicts
+                                        dependencies to this unit for
+                                        their mount unit, which is
+                                        implicitly done when
+                                        <varname>DefaultDependencies=yes</varname>
+                                        is set (the default).</para>

                                 </listitem>
                         </varlistentry>
                                 </listitem>
                         </varlistentry>

+

                 </variablelist>
         </refsect1>
 
         <refsect1>
                 </variablelist>
         </refsect1>
 
         <refsect1>

-                <title>Special Session Units</title>
+                <title>Special User Units</title>

 
 

-                <para>When systemd runs as a service instance, the
+                <para>When systemd runs as a user instance, the

                 following special units are available, which have
                 similar definitions as their system counterparts:
                 <filename>default.target</filename>,
                 following special units are available, which have
                 similar definitions as their system counterparts:
                 <filename>default.target</filename>,

-                <filename>local-fs.target</filename>,
-                <filename>remote-fs.target</filename>,

                 <filename>shutdown.target</filename>,
                 <filename>shutdown.target</filename>,

-                <filename>sockets.target</filename>,
-                <filename>swap.target</filename>.</para>
+                <filename>sockets.target</filename></para>
+
+                <para>In addition the following special unit is
+                understood only when systemd runs as service instance:</para>
+
+                <variablelist>
+                        <varlistentry>
+                                <term><filename>exit.target</filename></term>
+                                <listitem>
+                                        <para>A special service unit
+                                        for shutting down the
+                                        user service manager.</para>
+
+                                        <para>Applications wanting to
+                                        terminate the user service
+                                        manager should start this
+                                        unit. If systemd receives
+                                        SIGTERM or SIGINT when running
+                                        as user service daemon it will
+                                        start this unit.</para>
+
+                                        <para>Normally, this pulls in
+                                        <filename>shutdown.target</filename>
+                                        which in turn should be
+                                        conflicted by all units that
+                                        want to be shut down on
+                                        user service manager exit.</para>
+                                </listitem>
+                        </varlistentry>
+                </variablelist>

         </refsect1>
 
         <refsect1>
                   <title>See Also</title>
                   <para>
         </refsect1>
 
         <refsect1>
                   <title>See Also</title>
                   <para>

-                          <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                          <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                          <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                          <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                          <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>bootup</refentrytitle><manvolnum>7</manvolnum></citerefentry>

                   </para>
         </refsect1>
 
                   </para>
         </refsect1>