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systemd/man/systemd-install.xml
Lennart Poettering b4f10a5e89 install: various improvements
Rename --start to --realize, to make things less confusing when doing
"systemctl stop --realize foo.service".

Introduce --realize=reload.

Don't talk to systemd when run within a chroot, or when systemd isn't
running.
2010-07-08 21:39:01 +02:00

239 lines
11 KiB
XML

<?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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Copyright 2010 Lennart Poettering
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You should have received a copy of the GNU General Public License
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<refentry id="systemd-install">
<refentryinfo>
<title>systemd-install</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-install</refentrytitle>
<manvolnum>1</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-install</refname>
<refpurpose>Enable or disable a systemd unit
definition file</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>systemd-install <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="plain">enable</arg> <arg choice="opt" rep="repeat">NAME</arg></command>
</cmdsynopsis>
<cmdsynopsis>
<command>systemd-install <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="plain">disable</arg> <arg choice="opt" rep="repeat">NAME</arg></command>
</cmdsynopsis>
<cmdsynopsis>
<command>systemd-install <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="plain">test</arg> <arg choice="opt" rep="repeat">NAME</arg></command>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>systemd-install</command> enables or
disables systemd units, or checks whether they are
enabled.</para>
<para>This command is useful to apply or undo the
installation instructions encoded in the <literal>[Install]</literal>
section of unit files. See
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for more information.</para>
<para>Enabling units (as with <command>systemd-install
enable</command>) should not be confused with
activating units (as with <command>systemctl
start</command>). The former simply installs the unit
files in the configuration tree, but does not start
them. The latter equals starting them, but does not
necessarily require them to be enabled.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist>
<varlistentry>
<term><option>--help</option></term>
<listitem><para>Prints a short help
text and exits.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--force</option></term>
<listitem><para>Enable/disable a
service even if it conflicts
with/contradicts another service. This
might have the effect of disabling
another service that was
enabled.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--system</option></term>
<listitem><para>Enable/disable a
system service.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--session</option></term>
<listitem><para>Enable/disable a
session service for the calling
user.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--global</option></term>
<listitem><para>Enable/disable a
session service for all
users.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--realize[=MODE]</option></term>
<listitem><para>After
enabling/disabling stop/restart/stop
the unit and reload manager
configuration. Optionally, takes one
of <option>no</option>,
<option>reload</option>,
<option>minimal</option>,
<option>maybe</option> or
<option>yes</option>. If
<option>no</option> is passed the
manager will not reload its
configuration and no service will be
started or stopped after
enabling/disabling of the unit
files. If <option>reload</option> is
passed the daemon configuration is
reloaded but the unit otherwise not
started/stopped/restarted. If
<option>minimal</option> is passed and
a unit is being enabled it will also
be restarted should it already be
running. If a unit is being disabled
it will be stopped should it be
running. In either case the daemon
configuration is
reloaded. <option>maybe</option> is
similar to this, but the unit will
also be started if it is being enabled
and any of the units listed in
<varname>WantedBy=</varname> in the
<literal>[Install]</literal> section
of the unit file is already
activated. Finally
<option>yes</option> starts the unit
unconditionally after enabling. This
setting defaults to
<option>no</option>. If the mode value
is omitted defaults to
<option>maybe</option>. This option
has no effect when
<option>--global</option> or
<command>test</command> is used, or
when systemd is not running or the
command is executed in a
<citerefentry><refentrytitle>chroot</refentrytitle><manvolnum>2</manvolnum></citerefentry>
environment.</para></listitem>
</varlistentry>
</variablelist>
<para>The following commands are understood:</para>
<variablelist>
<varlistentry>
<term><command>enable</command></term>
<listitem><para>Enable a unit. This
will create a number of symlinks as
encoded in the
<literal>[Install]</literal> section
of a unit file.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>disable</command></term>
<listitem><para>Disable a unit. This
will remove a number of symlinks as
encoded in the
<literal>[Install]</literal> section
of a unit file.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>test</command></term>
<listitem><para>Checks whether any of
the units specified are
installed. This will check for the
existence of a number of symlinks as
encoded in the
<literal>[Install]</literal> section
of a unit file.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Exit status</title>
<para>On success 0 is returned, a non-zero failure
code otherwise.</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>
</para>
</refsect1>
</refentry>