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systemd/man/systemd.target.xml
Tom Gundersen 12b42c7667 man: revert dynamic paths for split-usr setups
This did not really work out as we had hoped. Trying to do this upstream
introduced several problems that probably makes it better suited as a
downstream patch after all. At any rate, it is not releaseable in the
current state, so we at least need to revert this before the release.

 * by adjusting the path to binaries, but not do the same thing to the
   search path we end up with inconsistent man-pages. Adjusting the search
   path too would be quite messy, and it is not at all obvious that this is
   worth the effort, but at any rate it would have to be done before we
   could ship this.

 * this means that distributed man-pages does not make sense as they depend
   on config options, and for better or worse we are still distributing
   man pages, so that is something that definitely needs sorting out before
   we could ship with this patch.

 * we have long held that split-usr is only minimally supported in order
   to boot, and something we hope will eventually go away. So before we start
   adding even more magic/effort in order to make this work nicely, we should
   probably question if it makes sense at all.
2015-06-18 19:47:44 +02:00

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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
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You should have received a copy of the GNU Lesser General Public License
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-->
<refentry id="systemd.target">
<refentryinfo>
<title>systemd.target</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Lennart</firstname>
<surname>Poettering</surname>
<email>lennart@poettering.net</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>systemd.target</refentrytitle>
<manvolnum>5</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd.target</refname>
<refpurpose>Target unit configuration</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename><replaceable>target</replaceable>.target</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>A unit configuration file whose name ends in
<literal>.target</literal> encodes information about a target unit
of systemd, which is used for grouping units and as well-known
synchronization points during start-up.</para>
<para>This unit type has no specific options. See
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for the common options of all unit configuration files. The common
configuration items are configured in the generic [Unit] and
[Install] sections. A separate [Target] section does not exist,
since no target-specific options may be configured.</para>
<para>Target units do not offer any additional functionality on
top of the generic functionality provided by units. They exist
merely to group units via dependencies (useful as boot targets),
and to establish standardized names for synchronization points
used in dependencies between units. Among other things, target
units are a more flexible replacement for SysV runlevels in the
classic SysV init system. (And for compatibility reasons special
target units such as <filename>runlevel3.target</filename> exist
which are used by the SysV runlevel compatibility code in systemd.
See
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
for details).</para>
<para>Unless <varname>DefaultDependencies=</varname> is set to
<option>false</option>, target units will implicitly complement
all configured dependencies of type <varname>Wants=</varname>,
<varname>Requires=</varname>,
<varname>RequiresOverridable=</varname> with dependencies of type
<varname>After=</varname> if the units in question also have
<varname>DefaultDependencies=true</varname>.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>