3 <!DOCTYPE refentry PUBLIC
"-//OASIS//DTD DocBook XML V4.5//EN"
4 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
5 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
6 <refentry id=
"binfmt.d" conditional='ENABLE_BINFMT'
7 xmlns:
xi=
"http://www.w3.org/2001/XInclude">
10 <title>binfmt.d
</title>
11 <productname>systemd
</productname>
15 <refentrytitle>binfmt.d
</refentrytitle>
16 <manvolnum>5</manvolnum>
20 <refname>binfmt.d
</refname>
21 <refpurpose>Configure additional binary formats for
22 executables at boot
</refpurpose>
26 <para><filename>/etc/binfmt.d/*.conf
</filename></para>
27 <para><filename>/run/binfmt.d/*.conf
</filename></para>
28 <para><filename>/usr/lib/binfmt.d/*.conf
</filename></para>
32 <title>Description
</title>
35 <citerefentry><refentrytitle>systemd-binfmt.service
</refentrytitle><manvolnum>8</manvolnum></citerefentry>
36 reads configuration files from the above directories to register
37 in the kernel additional binary formats for executables.
</para>
41 <title>Configuration Format
</title>
43 <para>Each file contains a list of binfmt_misc kernel binary format rules. Consult the kernel's
<ulink
44 url=
"https://www.kernel.org/doc/html/latest/admin-guide/binfmt-misc.html">binfmt-misc.rst
</ulink> documentation
45 file for more information on registration of additional binary formats and how to write rules.
</para>
47 <para>Empty lines and lines beginning with ; and # are ignored.
48 Note that this means you may not use ; and # as delimiter in
49 binary format rules.
</para>
52 <xi:include href=
"standard-conf.xml" xpointer=
"confd" />
55 <title>Example
</title>
57 <title>/etc/binfmt.d/wine.conf example:
</title>
59 <programlisting># Start WINE on Windows executables
60 :DOSWin:M::MZ::/usr/bin/wine:
</programlisting>
65 <title>See Also
</title>
67 <citerefentry><refentrytitle>systemd
</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
68 <citerefentry><refentrytitle>systemd-binfmt.service
</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
69 <citerefentry><refentrytitle>systemd-delta
</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
70 <citerefentry project='die-net'
><refentrytitle>wine
</refentrytitle><manvolnum>8</manvolnum></citerefentry>