lfs-book/chapter06/grub.xml

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  %patches-entities;
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<sect1 id="ch-system-grub" role="wrap">
<title>GRUB-&grub-version;</title>
<?dbhtml filename="grub.html"?>

<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>0.2 SBU</seg><seg>10.0 MB</seg></seglistitem>
</segmentedlist>

<segmentedlist>
<segtitle>&dependencies;</segtitle>
<seglistitem><seg>Bash, Binutils, Coreutils, Diffutils,
GCC, Glibc, Grep, Make, Ncurses, and Sed</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>Prepare GRUB for compilation:</para>

<screen><userinput>./configure --prefix=/usr</userinput></screen>

<para>Compile the package:</para>

<screen><userinput>make</userinput></screen>

<para>To test the results, issue:
<userinput>sed -i '/ufs2/d' stage2/size_test &amp;&amp;
make check</userinput>.</para>

<para>The UFS test is known to fail due to a compiler issue.  The failure
prevents the rest of the tests from being run, so the <command>sed</command>
command is used to avoid the failure.  The UFS test failure can be ignored
unless you plan to boot from a UFS partition.  The partitions are normally only
used by Sun workstations.</para>

<para>Install the package:</para>

<screen><userinput>make install
mkdir /boot/grub
cp /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-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-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>