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If the ESP is not mounted with "iocharset=ascii", but with "iocharset=utf8" (which is for example the default in Debian), the file system becomes case sensitive. This means that a file created as "FooBarBaz" cannot be accessed as "foobarbaz" since those are then considered different files. Moreover, a file created as "FooBar" can then also not be accessed as "foobar", and it also prevents such a file from being created, as both would use the same 8.3 short name "FOOBAR". Even though the UEFI specification [0] does give the canonical spelling for the files mentioned above, not all implementations completely conform to that, so it's possible that those files would already exist, but with a different spelling, causing subtle bugs when scanning or modifying the ESP. While the proper fix would of course be that everybody conformed to the standard, we can work around this problem by just referencing the files by their 8.3 short names, i.e. using upper case. Fixes: #3740 [0] <http://www.uefi.org/specifications>, version 2.6, section 3.5.1.1
129 lines
4.4 KiB
XML
129 lines
4.4 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"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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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="bootctl" conditional='ENABLE_EFI'
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>bootctl</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>Kay</firstname>
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<surname>Sievers</surname>
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<email>kay@vrfy.org</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>bootctl</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>bootctl</refname>
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<refpurpose>Control the firmware and boot manager settings</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>status</command>
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</cmdsynopsis>
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<cmdsynopsis>
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<command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>update</command>
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</cmdsynopsis>
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<cmdsynopsis>
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<command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>install</command>
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</cmdsynopsis>
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<cmdsynopsis>
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<command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>remove</command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>bootctl</command> checks, updates,
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installs or removes the boot loader from the current
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system.</para>
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<para><command>bootctl status</command> checks and prints the
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currently installed versions of the boot loader binaries and
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all current EFI boot variables.</para>
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<para><command>bootctl update</command> updates all installed
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versions of systemd-boot, if the current version is newer than the
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version installed in the EFI system partition. This also includes
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the EFI default/fallback loader at /EFI/BOOT/BOOT*.EFI. A
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systemd-boot entry in the EFI boot variables is created if there
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is no current entry. The created entry will be added to the end of
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the boot order list.</para>
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<para><command>bootctl install</command> installs systemd-boot into
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the EFI system partition. A copy of systemd-boot will be stored as
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the EFI default/fallback loader at /EFI/BOOT/BOOT*.EFI. A systemd-boot
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entry in the EFI boot variables is created and added to the top
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of the boot order list.</para>
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<para><command>bootctl remove</command> removes all installed
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versions of systemd-boot from the EFI system partition, and removes
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systemd-boot from the EFI boot variables.</para>
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<para>If no command is passed, <command>status</command> is
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implied.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist>
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<xi:include href="standard-options.xml" xpointer="help" />
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<xi:include href="standard-options.xml" xpointer="version" />
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<varlistentry>
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<term><option>--path</option></term>
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<listitem><para>Path to the EFI system partition. The default is /boot.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--no-variables</option></term>
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<listitem><para>Do not touch the EFI boot variables.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>On success, 0 is returned, a non-zero failure
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code otherwise.</para>
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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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<ulink url="http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec">Boot loader specification</ulink>
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<ulink url="http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface">Systemd boot loader interface</ulink>
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</para>
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</refsect1>
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</refentry>
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