3 <!DOCTYPE refentry PUBLIC
"-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
5 SPDX-License-Identifier: LGPL-2.1+
7 This file is part of systemd.
9 Copyright 2014 Zbigniew Jędrzejewski-Szmek
11 <refentry id=
"systemd-sysv-generator" conditional=
"HAVE_SYSV_COMPAT">
14 <title>systemd-sysv-generator
</title>
15 <productname>systemd
</productname>
19 <contrib>Documentation
</contrib>
20 <firstname>Zbigniew
</firstname>
21 <surname>Jędrzejewski-Szmek
</surname>
22 <email>zbyszek@in.waw.pl
</email>
28 <refentrytitle>systemd-sysv-generator
</refentrytitle>
29 <manvolnum>8</manvolnum>
33 <refname>systemd-sysv-generator
</refname>
34 <refpurpose>Unit generator for SysV init scripts
</refpurpose>
38 <para><filename>/usr/lib/systemd/system-generators/systemd-sysv-generator
</filename></para>
42 <title>Description
</title>
44 <para><filename>systemd-sysv-generator
</filename> is a generator
45 that creates wrapper .service units for
46 <ulink url=
"https://savannah.nongnu.org/projects/sysvinit">SysV init
</ulink>
47 scripts in
<filename>/etc/init.d/*
</filename> at boot and when
48 configuration of the system manager is reloaded. This will allow
49 <citerefentry><refentrytitle>systemd
</refentrytitle><manvolnum>1</manvolnum></citerefentry>
50 to support them similarly to native units.
</para>
52 <para><ulink url=
"http://refspecs.linuxbase.org/LSB_3.1.1/LSB-Core-generic/LSB-Core-generic/iniscrptact.html">LSB headers
</ulink>
53 in SysV init scripts are interpreted, and the ordering specified
54 in the header is turned into dependencies between the generated
55 unit and other units. The LSB facilities
56 <literal>$remote_fs
</literal>,
<literal>$network
</literal>,
57 <literal>$named
</literal>,
<literal>$portmap
</literal>,
58 <literal>$time
</literal> are supported and will be turned into
59 dependencies on specific native systemd targets. See
60 <citerefentry><refentrytitle>systemd.special
</refentrytitle><manvolnum>5</manvolnum></citerefentry>
61 for more details.
</para>
63 <para>SysV runlevels have corresponding systemd targets
64 (
<filename>runlevel
<replaceable>X
</replaceable>.target
</filename>).
65 The wrapper unit that is generated will be wanted by those targets
66 which correspond to runlevels for which the script is
69 <para><command>systemd
</command> does not support SysV scripts as
70 part of early boot, so all wrapper units are ordered after
71 <filename>basic.target
</filename>.
</para>
73 <para><filename>systemd-sysv-generator
</filename> implements
74 <citerefentry><refentrytitle>systemd.generator
</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
</para>
78 <title>See Also
</title>
80 <citerefentry><refentrytitle>systemd
</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
81 <citerefentry><refentrytitle>systemd.service
</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
82 <citerefentry><refentrytitle>systemd.target
</refentrytitle><manvolnum>5</manvolnum></citerefentry>