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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">
+
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
+
+<refentry id="loader.conf" conditional='ENABLE_EFI'
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+ <refentryinfo>
+ <title>loader.conf</title>
+ <productname>systemd</productname>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>loader.conf</refentrytitle>
+ <manvolnum>5</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>loader.conf</refname>
+ <refpurpose>Configuration file for systemd-boot</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <para><filename><replaceable>ESP</replaceable>/loader/loader.conf</filename>,
+ <filename><replaceable>ESP</replaceable>/loader/entries/*.conf</filename>
+ </para>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd-boot</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ will read <filename><replaceable>ESP</replaceable>/loader/loader.conf</filename> and any files with the
+ <literal>.conf</literal> extension under
+ <filename><replaceable>ESP</replaceable>/loader/entries/</filename> on the EFI system partition (ESP).
+ </para>
+
+ <para>Each configuration file must consist of an option name, followed by
+ whitespace, and the option value. <literal>#</literal> may be used to start
+ a comment line. Empty and comment lines are ignored.</para>
+
+ <para>Boolean arguments may be written as
+ <literal>yes</literal>/<literal>y</literal>/<literal>true</literal>/<literal>1</literal> or
+ <literal>no</literal>/<literal>n</literal>/<literal>false</literal>/<literal>0</literal>.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Options</title>
+
+ <para>The following configuration options in <filename>loader.conf</filename> are understood:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term>default</term>
+
+ <listitem><para>A glob pattern to select the default entry. The default entry
+ may be changed in the boot menu itself, in which case the name of the
+ selected entry will be stored as an EFI variable, overriding this option.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>timeout</term>
+
+ <listitem><para>How long the boot menu should be shown before the default
+ entry is booted, in seconds. This may be changed in the boot menu itself and
+ will be stored as an EFI variable in that case, overriding this option.
+ </para>
+
+ <para>If the timeout is disabled, the default entry will be booted
+ immediately. The menu can be shown by pressing and holding a key before
+ systemd-boot is launched.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>console-mode</term>
+
+ <listitem><para>This option configures the resolution of the console. Takes a
+ number or one of the special values listed below. The following values may be
+ used:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term>0</term>
+ <listitem>
+ <para>Standard UEFI 80x25 mode</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>1</term>
+ <listitem>
+ <para>80x50 mode, not supported by all devices</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>2</term>
+ <listitem>
+ <para>the first non-standard mode provided by the device
+ firmware, if any</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>auto</term>
+ <listitem>
+ <para>Pick a suitable mode automatically using heuristics</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>max</term>
+ <listitem>
+ <para>Pick the highest-numbered available mode</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>keep</term>
+ <listitem>
+ <para>Keep the mode selected by firmware (the default)</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>editor</term>
+
+ <listitem><para>Takes a boolean argument. Enable (the default) or disable the
+ editor. The editor should be disabled if the machine can be accessed by
+ unauthorized persons.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>auto-entries</term>
+
+ <listitem><para>Takes a boolean argument. Enable (the default) or disable
+ entries for other boot entries found on the boot partition. In particular,
+ this may be useful when loader entries are created to show replacement
+ descriptions for those entries.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>auto-firmware</term>
+
+ <listitem><para>Takes a boolean argument. Enable (the default) or disable
+ the "Reboot into firmware" entry.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Example</title>
+
+ <programlisting># /boot/efi/loader/loader.conf
+timeout 0
+default 01234567890abcdef1234567890abdf0-*
+editor no
+ </programlisting>
+
+ <para>The menu will not be shown by default (the menu can still be shown by
+ pressing and holding a key during boot). One of the entries with files with a
+ name starting with <literal>01234567890abcdef1234567890abdf0-</literal> will be
+ selected by default. If more than one entry matches, the one with the highest
+ priority will be selected (generally the one with the highest version number).
+ The editor will be disabled, so it is not possible to alter the kernel command
+ line.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd-boot</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>bootctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+</refentry>