lfs-book/chapter06/grub.xml

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<!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>