| 1 | <?xml version="1.0" encoding="UTF-8"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY grub-efi-download-http "https://ftp.gnu.org/gnu/grub/grub-&grub-version;.tar.xz">
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| 8 | <!ENTITY grub-efi-download-ftp " ">
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| 9 | <!ENTITY grub-efi-md5sum "60c564b1bdc39d8e43b3aab4bc0fb140">
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| 10 | <!ENTITY grub-efi-size "6.4 MB">
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| 11 | <!ENTITY grub-efi-buildsize "183 MB">
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| 12 | <!ENTITY grub-efi-time "0.4 SBU (on 64-bit LFS, using parallelism=4)">
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| 13 |
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| 14 | <!ENTITY unifont-download-http "https://unifoundry.com/pub/unifont/unifont-&unifont-version;/font-builds/unifont-&unifont-version;.pcf.gz">
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| 15 | <!ENTITY unifont-md5sum "da47e9c7a2cec3b68a0fad5d2a341dcc">
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| 16 | <!ENTITY unifont-size "1.4 MB">
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| 17 | ]>
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| 18 |
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| 19 | <sect1 id="grub-efi" xreflabel="GRUB-&grub-version; for EFI">
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| 20 | <?dbhtml filename="grub-efi.html"?>
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| 21 |
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| 22 |
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| 23 | <title>GRUB-&grub-version; for EFI</title>
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| 24 |
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| 25 | <indexterm zone="grub-efi">
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| 26 | <primary sortas="a-grub-efi">grub-efi</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to GRUB</title>
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| 31 |
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| 32 | <para>
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| 33 | The <application>GRUB</application> package provides GRand Unified
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| 34 | Bootloader. In this page it will be built with UEFI support, which
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| 35 | is not enabled for GRUB built in LFS.
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| 36 | </para>
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| 37 |
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| 38 | &lfs121_checked;
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| 39 |
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| 40 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 41 | <itemizedlist spacing="compact">
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| 42 | <listitem>
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| 43 | <para>
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| 44 | Download (HTTP): <ulink url="&grub-efi-download-http;"/>
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| 45 | </para>
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| 46 | </listitem>
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| 47 | <listitem>
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| 48 | <para>
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| 49 | Download (FTP): <ulink url="&grub-efi-download-ftp;"/>
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| 50 | </para>
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| 51 | </listitem>
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| 52 | <listitem>
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| 53 | <para>
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| 54 | Download MD5 sum: &grub-efi-md5sum;
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| 55 | </para>
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| 56 | </listitem>
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| 57 | <listitem>
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| 58 | <para>
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| 59 | Download size: &grub-efi-size;
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| 60 | </para>
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| 61 | </listitem>
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| 62 | <listitem>
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| 63 | <para>
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| 64 | Estimated disk space required: &grub-efi-buildsize;
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| 65 | </para>
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| 66 | </listitem>
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| 67 | <listitem>
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| 68 | <para>
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| 69 | Estimated build time: &grub-efi-time;
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| 70 | </para>
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| 71 | </listitem>
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| 72 | </itemizedlist>
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| 73 |
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| 74 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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| 75 | <!--
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| 76 | <itemizedlist spacing="compact">
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| 77 | <listitem>
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| 78 | <para>
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| 79 | Required patch:
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| 80 | <ulink url="&patch-root;/grub-&grub-version;-upstream_fixes-1.patch"/>
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| 81 | </para>
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| 82 | </listitem>
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| 83 | </itemizedlist>
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| 84 | -->
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| 85 | <itemizedlist spacing="compact">
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| 86 | <title>Unicode font data used to display GRUB menu</title>
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| 87 | <listitem>
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| 88 | <para>
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| 89 | Download (HTTP): <ulink url="&unifont-download-http;"/>
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| 90 | </para>
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| 91 | </listitem>
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| 92 | <listitem>
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| 93 | <para>
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| 94 | Download MD5 sum: &unifont-md5sum;
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| 95 | </para>
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| 96 | </listitem>
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| 97 | <listitem>
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| 98 | <para>
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| 99 | Download size: &unifont-size;
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| 100 | </para>
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| 101 | </listitem>
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| 102 | </itemizedlist>
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| 103 |
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| 104 | <itemizedlist spacing="compact">
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| 105 | <title>GCC (only needed if building on 32-bit LFS)</title>
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| 106 | <listitem>
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| 107 | <para>
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| 108 | Refer to <xref linkend='gcc'/> page for download info.
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| 109 | </para>
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| 110 | </listitem>
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| 111 | </itemizedlist>
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| 112 |
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| 113 | <bridgehead renderas="sect3">GRUB Dependencies</bridgehead>
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| 114 |
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| 115 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 116 | <para role="recommended">
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| 117 | <xref role="runtime" linkend="efibootmgr"/> (runtime) and
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| 118 | <xref linkend="freetype2"/>
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| 119 | </para>
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| 120 |
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| 121 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 122 | <para role="optional">
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| 123 | <xref linkend="lvm2"/> and
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| 124 | <xref linkend="fuse3"/>
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| 125 | </para>
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| 126 | </sect2>
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| 127 |
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| 128 | <sect2 role="installation">
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| 129 | <title>Installation of GRUB</title>
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| 130 |
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| 131 | <para>
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| 132 | First, install font data as the
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| 133 | <systemitem class="username">root</systemitem> user:
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| 134 | </para>
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| 135 |
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| 136 | <screen role="root"><userinput>mkdir -pv /usr/share/fonts/unifont &&
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| 137 | gunzip -c ../unifont-&unifont-version;.pcf.gz > /usr/share/fonts/unifont/unifont.pcf</userinput></screen>
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| 138 |
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| 139 | <warning>
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| 140 | <para>Unset any environment variables which may affect the build:</para>
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| 141 |
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| 142 | <screen><userinput>unset {C,CPP,CXX,LD}FLAGS</userinput></screen>
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| 143 |
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| 144 | <para>Don't try <quote>tuning</quote> this package with custom
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| 145 | compilation flags: this package is a bootloader, with low-level
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| 146 | operations in the source code which is likely to be broken by some
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| 147 | aggressive optimizations.</para>
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| 148 | </warning>
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| 149 |
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| 150 | <para>
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| 151 | Add a file missing from the release tarball:
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| 152 | </para>
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| 153 |
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| 154 | <screen><userinput>echo <literal>depends bli part_gpt</literal> > grub-core/extra_deps.lst</userinput></screen>
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| 155 |
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| 156 | <para>If you are running a 32-bit LFS, prepare a 64-bit compiler:</para>
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| 157 |
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| 158 | <!-- 'literal' is used deliberately to show this is only for 32-bit LFS -->
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| 159 | <screen><userinput>case $(uname -m) in i?86 )
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| 160 | <literal>tar xf ../gcc-&gcc-version;.tar.xz
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| 161 | mkdir gcc-&gcc-version;/build
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| 162 | pushd gcc-&gcc-version;/build
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| 163 | ../configure --prefix=$PWD/../../x86_64-gcc \
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| 164 | --target=x86_64-linux-gnu \
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| 165 | --with-system-zlib \
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| 166 | --enable-languages=c,c++ \
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| 167 | --with-ld=/usr/bin/ld
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| 168 | make all-gcc
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| 169 | make install-gcc
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| 170 | popd
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| 171 | export TARGET_CC=$PWD/x86_64-gcc/bin/x86_64-linux-gnu-gcc</literal>
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| 172 | esac</userinput></screen>
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| 173 |
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| 174 | <para>
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| 175 | Build <application>GRUB</application> with the following commands:
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| 176 | </para>
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| 177 |
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| 178 | <screen><userinput>./configure --prefix=/usr \
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| 179 | --sysconfdir=/etc \
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| 180 | --disable-efiemu \
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| 181 | --enable-grub-mkfont \
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| 182 | --with-platform=efi \
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| 183 | --target=x86_64 \
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| 184 | --disable-werror &&
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| 185 | unset TARGET_CC &&
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| 186 | make</userinput></screen>
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| 187 |
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| 188 | <para>
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| 189 | This package does not have a test suite providing meaningful results.
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| 190 | </para>
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| 191 |
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| 192 | <para>
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| 193 | Now, if you've skip the LFS GRUB package, as the
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| 194 | <systemitem class="username">root</systemitem> user:
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| 195 | </para>
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| 196 |
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| 197 | <screen role="nodump"><userinput>make install &&
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| 198 | mv -v /etc/bash_completion.d/grub /usr/share/bash-completion/completions</userinput></screen>
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| 199 |
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| 200 | <para>
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| 201 | If you've not skip LFS GRUB package, as the &root; user, only install
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| 202 | the components not installed from the LFS GRUB package instead:
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| 203 | </para>
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| 204 |
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| 205 | <screen role="root"><userinput>make DESTDIR=$PWD/dest install
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| 206 | cp -av dest/usr/lib/grub/x86_64-efi -T /usr/lib/grub/x86_64-efi
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| 207 | cp -av dest/usr/share/grub/*.{pf2,h} /usr/share/grub
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| 208 | cp -av dest/usr/bin/grub-mkfont /usr/bin</userinput></screen>
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| 209 |
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| 210 | <para>
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| 211 | If the optional dependencies are installed, also install the
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| 212 | <command>grub-mount</command> program:
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| 213 | </para>
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| 214 |
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| 215 | <screen role="nodump"><userinput>cp -av dest/usr/bin/grub-mount /usr/bin</userinput></screen>
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| 216 |
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| 217 | </sect2>
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| 218 |
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| 219 | <sect2 role="commands">
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| 220 | <title>Command Explanations</title>
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| 221 |
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| 222 | <para>
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| 223 | <parameter>--enable-grub-mkfont</parameter>: Build the tool named
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| 224 | <command>grub-mkfont</command> to generate the font file for the boot
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| 225 | loader from the font data we've installed.
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| 226 | </para>
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| 227 |
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| 228 | <warning>
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| 229 | <para>If the recommended dependency <xref linkend="freetype2"/> is not
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| 230 | installed, it is possible to omit this option and build GRUB. However,
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| 231 | if <command>grub-mkfont</command> is not built, or the unicode font
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| 232 | data is not available at the time GRUB is built, GRUB won't install
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| 233 | any font for the boot loader. The GRUB boot menu will be displayed
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| 234 | using a coarse font or in a smaller region on the screen.</para>
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| 235 | </warning>
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| 236 |
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| 237 | <para>
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| 238 | <parameter>--with-platform=efi</parameter>: Ensures building GRUB with
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| 239 | EFI enabled.
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| 240 | </para>
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| 241 |
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| 242 | <para>
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| 243 | <parameter>--target=x86_64</parameter>: Ensures building GRUB for
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| 244 | x86_64 even if building on a 32-bit LFS system. Most EFI firmware
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| 245 | on x86_64 does not support 32-bit bootloaders.
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| 246 | </para>
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| 247 |
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| 248 | <para>
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| 249 | <option>--target=i386</option>: A few 32-bit x86 platforms have EFI
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| 250 | support. And, some x86_64 platforms have a 32-bit EFI implementation,
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| 251 | but they are very old and rare. Use this instead of
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| 252 | <parameter>--target=x86_64</parameter> if you are
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| 253 | <emphasis role='bold'>absolutely sure</emphasis> that LFS is running
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| 254 | on such a system.
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| 255 | </para>
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| 256 |
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| 257 | </sect2>
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| 258 |
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| 259 | <sect2>
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| 260 | <title>Configuring GRUB</title>
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| 261 |
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| 262 | <para>
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| 263 | Using GRUB to make the LFS system bootable on UEFI platform will be
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| 264 | discussed in <xref linkend="grub-setup"/>.
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| 265 | </para>
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| 266 | </sect2>
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| 267 |
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| 268 | <sect2 role="content">
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| 269 | <title>Contents</title>
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| 270 |
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| 271 | <para>
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| 272 | A list of the installed files, along with their short
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| 273 | descriptions can be found at
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| 274 | <ulink url="&lfs-root;/chapter08/grub.html#contents-gRUB"/>.
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| 275 | </para>
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| 276 |
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| 277 | <para>
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| 278 | Listed below are the newly installed programs
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| 279 | along with short descriptions.
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| 280 | </para>
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| 281 |
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| 282 | <segmentedlist>
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| 283 | <segtitle>Installed Programs</segtitle>
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| 284 | <segtitle>Installed Directories</segtitle>
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| 285 |
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| 286 | <seglistitem>
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| 287 | <seg>grub-mkfont and grub-mount (optional)</seg>
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| 288 | <seg>/usr/lib/grub/x86_64-efi</seg>
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| 289 | </seglistitem>
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| 290 | </segmentedlist>
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| 291 |
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| 292 | <variablelist>
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| 293 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 294 | <?dbfo list-presentation="list"?>
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| 295 | <?dbhtml list-presentation="table"?>
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| 296 |
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| 297 | <varlistentry id="grub-mkfont">
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| 298 | <term><command>grub-mkfont</command></term>
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| 299 | <listitem>
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| 300 | <para>
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| 301 | converts common font file formats into PF2
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| 302 | </para>
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| 303 | <indexterm zone="grub-efi grub-mkfont">
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| 304 | <primary sortas="b-grub-mkfont">grub-mkfont</primary>
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| 305 | </indexterm>
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| 306 | </listitem>
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| 307 | </varlistentry>
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| 308 |
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| 309 | <varlistentry id="grub-mount">
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| 310 | <term><command>grub-mount</command></term>
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| 311 | <listitem>
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| 312 | <para>
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| 313 | is a debug tool for filesystem driver
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| 314 | </para>
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| 315 | <indexterm zone="grub-efi grub-mount">
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| 316 | <primary sortas="b-grub-mount">grub-mount</primary>
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| 317 | </indexterm>
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| 318 | </listitem>
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| 319 | </varlistentry>
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| 320 | </variablelist>
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| 321 |
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| 322 | </sect2>
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| 323 |
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| 324 | </sect1>
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