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+<?xml version="1.0"?>
+<!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
+<refentry id="systemd-sysv-generator" conditional="HAVE_SYSV_COMPAT">
+
+ <refentryinfo>
+ <title>systemd-sysv-generator</title>
+ <productname>systemd</productname>
+ </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 allows
+ <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. The 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>7</manvolnum></citerefentry>
+ for more details.</para>
+
+ <para>Note that compatibility is quite comprehensive but not 100%, for more details see <ulink
+ url="https://www.freedesktop.org/wiki/Software/systemd/Incompatibilities">Incompatibilities with
+ SysV</ulink>.</para>
+
+ <para>SysV runlevels have corresponding systemd targets
+ (<filename>runlevel<replaceable>X</replaceable>.target</filename>).
+ The 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 support 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>