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systemd/man/systemd-sysv-generator.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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Copyright 2014 Zbigniew Jędrzejewski-Szmek
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You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="systemd-sysv-generator" conditional="HAVE_SYSV_COMPAT">
<refentryinfo>
<title>systemd-sysv-generator</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Documentation</contrib>
<firstname>Zbigniew</firstname>
<surname>Jędrzejewski-Szmek</surname>
<email>zbyszek@in.waw.pl</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>systemd-sysv-generator</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-sysv-generator</refname>
<refpurpose>Unit generator for SysV init scripts</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>/usr/lib/systemd/system-generators/systemd-sysv-generator</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><filename>systemd-sysv-generator</filename> is a generator
that creates wrapper .service units for
<ulink url="https://savannah.nongnu.org/projects/sysvinit">SysV init</ulink>
scripts in <filename>/etc/init.d/*</filename> at boot and when
configuration of the system manager is reloaded. This will allow
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
to support them similarly to native units.</para>
<para><ulink url="http://refspecs.linuxbase.org/LSB_3.1.1/LSB-Core-generic/LSB-Core-generic/iniscrptact.html">LSB headers</ulink>
in SysV init scripts are interpreted, and the ordering specified
in the header is turned into dependencies between the generated
unit and other units. LSB facilities
<literal>$remote_fs</literal>, <literal>$network</literal>,
<literal>$named</literal>, <literal>$portmap</literal>,
<literal>$time</literal> are supported and will be turned into
dependencies on specific native systemd targets. See
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for more details.</para>
<para>SysV runlevels have corresponding systemd targets
(<filename>runlevel<replaceable>X</replaceable>.target</filename>).
Wrapper unit that is generated will be wanted by those targets
which correspond to runlevels for which the script is
enabled.</para>
<para><command>systemd</command> does not supports SysV scripts as
part of early boot, so all wrapper units are ordered after
<filename>basic.target</filename>.</para>
<para><filename>systemd-sysv-generator</filename> implements
<citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>