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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-system-grub" role="wrap">
<?dbhtml filename="grub.html"?>
<sect1info condition="script">
<productname>grub</productname>
<productnumber>&grub-version;</productnumber>
<address>&grub-url;</address>
</sect1info>
<title>GRUB-&grub-version;</title>
<indexterm zone="ch-system-grub">
<primary sortas="a-Grub">GRUB</primary>
</indexterm>
<sect2 role="package">
<title/>
<para>The GRUB package contains the GRand Unified Bootloader.</para>
<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem>
<seg>&grub-ch6-sbu;</seg>
<seg>&grub-ch6-du;</seg>
</seglistitem>
</segmentedlist>
</sect2>
<sect2 role="installation">
<title>Installation of GRUB</title>
<para>This package is known to have issues when its default
optimization flags (including the <parameter>-march</parameter> and
<parameter>-mcpu</parameter> options) are changed. If any environment
variables that override default optimizations have been defined, such
as <envar>CFLAGS</envar> and <envar>CXXFLAGS</envar>,
unset them when building GRUB.</para>
<para>Start by applying the following patch to allow for better drive
detection, fix some GCC 4.x issues, and provide better SATA support
for some disk controllers:</para>
<screen><userinput remap="pre">patch -Np1 -i ../&grub-geometry-patch;</userinput></screen>
<para>By default, GRUB doesn't support ext2 filesystems with 256-byte inodes.
Fix this by applying the following patch:</para>
<screen><userinput remap="pre">patch -Np1 -i ../&grub-inode-patch;</userinput></screen>
<para>Prepare GRUB for compilation:</para>
<screen><userinput remap="configure">./configure --prefix=/usr</userinput></screen>
<para>Compile the package:</para>
<screen><userinput remap="make">make</userinput></screen>
<para>To test the results, issue:</para>
<screen><userinput remap="test">make check</userinput></screen>
<para>Install the package:</para>
<screen><userinput remap="install">make install
mkdir -v /boot/grub
cp -v /usr/lib/grub/i386-pc/stage{1,2} /boot/grub</userinput></screen>
<para>Replace <filename class="directory">i386-pc</filename> with whatever
directory is appropriate for the hardware in use.</para>
<para>The <filename class="directory">i386-pc</filename> directory
contains a number of <filename>*stage1_5</filename> files, different
ones for different file systems. Review the files available and copy
the appropriate ones to the <filename
class="directory">/boot/grub</filename> directory. Most users will
copy the <filename>e2fs_stage1_5</filename> and/or
<filename>reiserfs_stage1_5</filename> files.</para>
</sect2>
<sect2 id="contents-gRUB" role="content">
<title>Contents of GRUB</title>
<segmentedlist>
<segtitle>Installed programs</segtitle>
<seglistitem>
<seg>grub, grub-install, grub-md5-crypt, grub-set-default,
grub-terminfo, and mbchk</seg>
</seglistitem>
</segmentedlist>
<variablelist>
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
<varlistentry id="grub">
<term><command>grub</command></term>
<listitem>
<para>The Grand Unified Bootloader's command shell</para>
<indexterm zone="ch-system-grub grub">
<primary sortas="b-grub">grub</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="grub-install">
<term><command>grub-install</command></term>
<listitem>
<para>Installs GRUB on the given device</para>
<indexterm zone="ch-system-grub grub-install">
<primary sortas="b-grub-install">grub-install</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="grub-md5-crypt">
<term><command>grub-md5-crypt</command></term>
<listitem>
<para>Encrypts a password in MD5 format</para>
<indexterm zone="ch-system-grub grub-md5-crypt">
<primary sortas="b-grub-md5-crypt">grub-md5-crypt</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="grub-set-default">
<term><command>grub-set-default</command></term>
<listitem>
<para>Sets the default boot entry for GRUB</para>
<indexterm zone="ch-system-grub grub-set-default">
<primary sortas="b-grub-set-default">grub-set-default</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="grub-terminfo">
<term><command>grub-terminfo</command></term>
<listitem>
<para>Generates a terminfo command from a terminfo name; it can be
employed if an unknown terminal is being used</para>
<indexterm zone="ch-system-grub grub-terminfo">
<primary sortas="b-grub-terminfo">grub-terminfo</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="mbchk">
<term><command>mbchk</command></term>
<listitem>
<para>Checks the format of a multi-boot kernel</para>
<indexterm zone="ch-system-grub mbchk">
<primary sortas="b-mbchk">mbchk</primary>
</indexterm>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>
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