<refsynopsisdiv>
<para><filename>basic.target</filename>,
<filename>ctrl-alt-del.target</filename>,
+ <filename>dbus.service</filename>,
+ <filename>dbus.target</filename>,
<filename>default.target</filename>,
<filename>display-manager.service</filename>,
- <filename>emergency.service</filename>,
+ <filename>emergency.target</filename>,
+ <filename>exit.service</filename>,
<filename>graphical.target</filename>,
<filename>halt.target</filename>,
<filename>kbrequest.target</filename>,
<filename>rescue.target</filename>,
<filename>rpcbind.target</filename>,
<filename>rtc-set.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>
<filename>shutdown.target</filename>,
<filename>sigpwr.target</filename>,
<filename>sockets.target</filename>,
<filename>swap.target</filename>,
+ <filename>sysinit.target</filename>,
+ <filename>@SPECIAL_SYSLOG_SERVICE@</filename>,
<filename>syslog.target</filename>,
<filename>systemd-initctl.service</filename>,
<filename>systemd-initctl.socket</filename>,
<filename>systemd-logger.service</filename>,
- <filename>systemd-logger.socket</filename></para>
+ <filename>systemd-logger.socket</filename>,
+ <filename>umount.target</filename></para>
</refsynopsisdiv>
<refsect1>
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>
<filename>reboot.target</filename>.</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>
+
+ <para>Units should generally
+ avoid depending on this unit
+ directly and instead refer to
+ the
+ <filename>dbus.target</filename>
+ unit instead, which pulls this
+ one in directly or indirectly
+ via socket-based activation.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><filename>dbus.target</filename></term>
+ <listitem>
+ <para>Administrators should
+ ensure that this target pulls
+ in a service unit with the
+ name or alias of
+ <filename>dbus.service</filename>
+ (or a socket unit that
+ activates this
+ service).</para>
+ </listitem>
+ </varlistentry>
<varlistentry>
<term><filename>default.target</filename></term>
<listitem>
<para>The display manager
service. Usually this should
be aliased (symlinked) to
- <filename>gdm.service</filename>
+ <filename>xdm.service</filename>
or a similar display manager
service.</para>
<para>systemd automatically
adds dependencies of type
After for this target unit to
all SysV init script service
- units with an LSB header
+ units with a LSB header
referring to the
<literal>$x-display-manager</literal>
facility, for compatibility
</listitem>
</varlistentry>
<varlistentry>
- <term><filename>emergency.service</filename></term>
+ <term><filename>emergency.target</filename></term>
<listitem>
- <para>A special service unit
+ <para>A special target unit
that starts an emergency
shell on the main
console. This unit is supposed
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>
<para>systemd automatically
<listitem>
<para>The mail transfer agent
(MTA) service. Usually this
- should pull in all units
+ should pull-in all units
necessary for
sending/receiving mails on the
local host.</para>
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>
<listitem>
<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>
- </listitem>
- </varlistentry>
<varlistentry>
<term><filename>shutdown.target</filename></term>
<listitem>
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
files.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><filename>sysinit.target</filename></term>
+ <listitem>
+ <para>A special target unit
+ covering early boot-up scripts.</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>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><filename>@SPECIAL_SYSLOG_SERVICE@</filename></term>
+ <listitem>
+ <para>A special unit for the
+ syslog daemon. As soon as
+ this service is fully started
+ up systemd will connect to it
+ and use it for logging if it
+ has been configured for
+ that.</para>
+
+ <para>Units should generally
+ avoid depending on this unit
+ directly and instead refer to
+ the
+ <filename>syslog.target</filename>
+ unit instead, which pulls this
+ one in directly or indirectly
+ via socket-based activation.</para>
+ </listitem>
+ </varlistentry>
<varlistentry>
<term><filename>syslog.target</filename></term>
<listitem>
kernel log buffer.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><filename>umount.target</filename></term>
+ <listitem>
+ <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>
</variablelist>
</refsect1>
<filename>shutdown.target</filename>,
<filename>sockets.target</filename>,
<filename>swap.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.service</filename></term>
+ <listitem>
+ <para>A special service unit
+ for shutting down the
+ session.</para>
+
+ <para>Applications wanting to
+ terminate the session should
+ start this unit. If systemd
+ receives SIGTERM or SIGINT
+ when running as session 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
+ session exit.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
</refsect1>
<refsect1>
~ianmdlvl / elogind.git / blobdiff