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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">
<!--
Copyright 2013 Kay Sievers
gummiboot is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="gummiboot">
<refentryinfo>
<title>gummiboot</title>
<productname>gummiboot</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Kay</firstname>
<surname>Sievers</surname>
<email>kay@vrfy.org</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>gummiboot</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>gummiboot</refname>
<refpurpose>Setup and manage Gummiboot Boot Manager</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>gummiboot <arg choice="opt" rep="repeat">OPTIONS</arg>status</command>
</cmdsynopsis>
<cmdsynopsis>
<command>gummiboot <arg choice="opt" rep="repeat">OPTIONS</arg>update</command>
</cmdsynopsis>
<cmdsynopsis>
<command>gummiboot <arg choice="opt" rep="repeat">OPTIONS</arg>install</command>
</cmdsynopsis>
<cmdsynopsis>
<command>gummiboot <arg choice="opt" rep="repeat">OPTIONS</arg>remove</command>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>gummibot</command> checks, updates,
installs or removes the boot loader from the current
system.</para>
<para><command>gummiboot status</command> checks and prints the
currently installed versions of the boot loader binaries and the
all current EFI boot variables.</para>
<para><command>gummiboot update</command> updates all installed
versions of gummiboot, if the current version is newer than the
version installed in the EFI system partition. This also includes
the EFI default/fallback loader at /EFI/Boot/boot*.efi. An
gummiboot entry in the EFI boot variables is created, if there
is no current entry. A created entry will be added to the end of
the boot order list.</para>
<para><command>gummiboot install</command> installs gummiboot into
the EFI system partition. A copy of gummiboot will be stored as
the EFI default/fallback loader at /EFI/Boot/boot*.efi. An gummiboot
entry in the EFI boot variables is created and added to the top
of the boot order list.</para>
<para><command>gummiboot remove</command> removes all installed
versions of gummiboot from the EFI system partition, and removes
gummiboot from the EFI boot variables.</para>
<para>If no command is passed <command>status</command> is
implied.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist>
<varlistentry>
<term><option>-h</option></term>
<term><option>--help</option></term>
<listitem><para>Prints a short help
text and exits.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--path</option></term>
<listitem><para>Path to the EFI system
partition. The default is /boot.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--no-variables</option></term>
<listitem><para>Do not touch the EFI boot
variables.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Exit status</title>
<para>On success 0 is returned, a non-zero failure
code otherwise.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<ulink url="http://freedesktop.org/wiki/Software/gummiboot">Gummiboot wiki</ulink>
<ulink url="http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec">Boot loader specification</ulink>
<ulink url="http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface">Systemd boot loader interface</ulink>
<citerefentry><refentrytitle>bootctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
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