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125 lines
5.4 KiB
XML
125 lines
5.4 KiB
XML
<?xml version="1.0"?>
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<!--*-nxml-*-->
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<!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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<!--
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="binfmt.d">
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<refentryinfo>
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<title>binfmt.d</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>binfmt.d</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>binfmt.d</refname>
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<refpurpose>Configure additional binary formats for
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executables at boot</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/etc/binfmt.d/*.conf</filename></para>
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<para><filename>/run/binfmt.d/*.conf</filename></para>
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<para><filename>/usr/lib/binfmt.d/*.conf</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>At boot,
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<citerefentry><refentrytitle>systemd-binfmt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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reads configuration files from the above directories
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to register in the kernel additional binary
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formats for executables.</para>
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</refsect1>
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<refsect1>
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<title>Configuration Format</title>
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<para>Each file contains a list of binfmt_misc kernel
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binary format rules. Consult <ulink
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url="http://www.kernel.org/doc/Documentation/binfmt_misc.txt">binfmt_misc.txt</ulink>
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for more information on registration of additional
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binary formats and how to write rules.</para>
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<para>Empty lines and lines beginning with ; and # are
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ignored. Note that this means you may not use ; and #
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as delimiter in binary format rules.</para>
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<para>Each configuration file shall be named in the
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style of <filename><program>.conf</filename>.
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Files in <filename>/etc/</filename> override files
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with the same name in <filename>/usr/lib/</filename>
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and <filename>/run/</filename>. Files in
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<filename>/run/</filename> override files with the
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same name in <filename>/usr/lib/</filename>. Packages
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should install their configuration files in
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<filename>/usr/lib/</filename>, files in
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<filename>/etc/</filename> are reserved for the local
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administrator, who may use this logic to override the
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configuration files installed from vendor
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packages. All files are sorted by their filename in
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alphabetical order, regardless in which of the
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directories they reside, to guarantee that a specific
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configuration file takes precedence over another file
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with an alphabetically later name.</para>
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<para>If the administrator wants to disable a
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configuration file supplied by the vendor the
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recommended way is to place a symlink to
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<filename>/dev/null</filename> in
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<filename>/etc/binfmt.d/</filename> bearing the
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same file name.</para>
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</refsect1>
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<refsect1>
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<title>Example</title>
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<example>
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<title>/etc/binfmt.d/wine.conf example:</title>
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<programlisting># Start WINE on Windows executables
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:DOSWin:M::MZ::/usr/bin/wine:</programlisting>
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</example>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-binfmt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>wine</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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