[756a787] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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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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[227bd7d6] | 7 | <!ENTITY grub-efi-download-http "https://ftp.gnu.org/gnu/grub/grub-&grub-version;.tar.xz">
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[756a787] | 8 | <!ENTITY grub-efi-download-ftp " ">
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[227bd7d6] | 9 | <!ENTITY grub-efi-md5sum "cf0fd928b1e5479c8108ee52cb114363">
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| 10 | <!ENTITY grub-efi-size "6.3 MB">
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[a9779b9] | 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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[756a787] | 13 |
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[c6b192c] | 14 | <!ENTITY unifont-download-http "https://unifoundry.com/pub/unifont/unifont-&unifont-version;/font-builds/unifont-&unifont-version;.pcf.gz">
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[dbb689b] | 15 | <!ENTITY unifont-md5sum "94ff8cb4d5674cd2f38b00cede5e06d5">
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[7cff22d] | 16 | <!ENTITY unifont-size "1.4 MB">
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[756a787] | 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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[a9779b9] | 38 | &lfs120_checked;
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[756a787] | 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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[6f87ba86] | 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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[756a787] | 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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[672f2a5] | 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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[bd141376] | 108 | Refer to <xref linkend='gcc'/> page for download info.
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[672f2a5] | 109 | </para>
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| 110 | </listitem>
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| 111 | </itemizedlist>
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| 112 |
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[756a787] | 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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[8013518e] | 117 | <xref role="runtime" linkend="efibootmgr"/> (runtime) and
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[756a787] | 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"/>
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| 124 | </para>
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| 125 |
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| 126 |
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| 127 | </sect2>
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| 128 |
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| 129 | <sect2 role="installation">
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| 130 | <title>Installation of GRUB</title>
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| 131 |
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| 132 | <para>
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[d5cc78a] | 133 | First, install font data as the
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[756a787] | 134 | <systemitem class="username">root</systemitem> user:
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| 135 | </para>
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| 136 |
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| 137 | <screen role="root"><userinput>mkdir -pv /usr/share/fonts/unifont &&
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[ad34447a] | 138 | gunzip -c ../unifont-&unifont-version;.pcf.gz > /usr/share/fonts/unifont/unifont.pcf</userinput></screen>
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[756a787] | 139 |
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| 140 | <warning>
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| 141 | <para>Unset any environment variables which may affect the build:</para>
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| 142 |
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| 143 | <screen><userinput>unset {C,CPP,CXX,LD}FLAGS</userinput></screen>
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| 144 |
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| 145 | <para>Don't try <quote>tuning</quote> this package with custom
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| 146 | compilation flags: this package is a bootloader, with low-level
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| 147 | operations in the source code which is likely to be broken by some
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| 148 | aggressive optimizations.</para>
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| 149 | </warning>
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| 150 |
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[6f87ba86] | 151 | <para>
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| 152 | Fix an issue causing <command>grub-install</command> to fail when the
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| 153 | <filename class='directory'>/boot</filename> partition (or the root
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| 154 | partition if <filename class='directory'>/boot</filename> is not a
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| 155 | separate partition) is created by e2fsprogs-1.47.0 or later:
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| 156 | </para>
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| 157 |
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| 158 | <screen><userinput>patch -Np1 -i ../grub-&grub-version;-upstream_fixes-1.patch</userinput></screen>
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| 159 |
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[672f2a5] | 160 | <para>If you are running a 32-bit LFS, prepare a 64-bit compiler:</para>
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| 161 |
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| 162 | <!-- 'literal' is used deliberately to show this is only for 32-bit LFS -->
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| 163 | <screen><userinput>case $(uname -m) in i?86 )
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[7ca5792] | 164 | <literal>tar xf ../gcc-&gcc-version;.tar.xz
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| 165 | mkdir gcc-&gcc-version;/build
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| 166 | pushd gcc-&gcc-version;/build
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[672f2a5] | 167 | ../configure --prefix=$PWD/../../x86_64-gcc \
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| 168 | --target=x86_64-linux-gnu \
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| 169 | --with-system-zlib \
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| 170 | --enable-languages=c,c++ \
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| 171 | --with-ld=/usr/bin/ld
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| 172 | make all-gcc
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| 173 | make install-gcc
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| 174 | popd
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| 175 | export TARGET_CC=$PWD/x86_64-gcc/bin/x86_64-linux-gnu-gcc</literal>
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| 176 | esac</userinput></screen>
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| 177 |
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[756a787] | 178 | <para>
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| 179 | Build <application>GRUB</application> with the following commands:
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| 180 | </para>
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| 181 |
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| 182 | <screen><userinput>./configure --prefix=/usr \
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| 183 | --sysconfdir=/etc \
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| 184 | --disable-efiemu \
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| 185 | --enable-grub-mkfont \
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| 186 | --with-platform=efi \
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[672f2a5] | 187 | --target=x86_64 \
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[756a787] | 188 | --disable-werror &&
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[672f2a5] | 189 | unset TARGET_CC &&
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[756a787] | 190 | make</userinput></screen>
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| 191 |
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| 192 | <para>
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[d5cc78a] | 193 | This package does not have a test suite providing meaningful results.
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[756a787] | 194 | </para>
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| 195 |
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| 196 | <para>
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| 197 | Now, as the <systemitem class="username">root</systemitem> user:
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| 198 | </para>
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| 199 |
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| 200 | <screen role="root"><userinput>make install &&
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| 201 | mv -v /etc/bash_completion.d/grub /usr/share/bash-completion/completions</userinput></screen>
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| 202 |
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| 203 | </sect2>
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| 204 |
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| 205 | <sect2 role="commands">
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| 206 | <title>Command Explanations</title>
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| 207 |
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| 208 | <para>
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[d5cc78a] | 209 | <parameter>--enable-grub-mkfont</parameter>: Build the tool named
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| 210 | <command>grub-mkfont</command> to generate the font file for the boot
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| 211 | loader from the font data we've installed.
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[756a787] | 212 | </para>
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| 213 |
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| 214 | <warning>
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| 215 | <para>If the recommended dependency <xref linkend="freetype2"/> is not
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[d5cc78a] | 216 | installed, it is possible to omit this option and build GRUB. However,
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[756a787] | 217 | if <command>grub-mkfont</command> is not built, or the unicode font
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[2c87187] | 218 | data is not available at the time GRUB is built, GRUB won't install
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[756a787] | 219 | any font for the boot loader. The GRUB boot menu will be displayed
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[0cef3a67] | 220 | using a coarse font or in a smaller region on the screen.</para>
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[756a787] | 221 | </warning>
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| 222 |
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| 223 | <para>
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[d5cc78a] | 224 | <parameter>--with-platform=efi</parameter>: Ensures building GRUB with
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| 225 | EFI enabled.
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[756a787] | 226 | </para>
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| 227 |
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[e724cb7] | 228 | <para>
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[672f2a5] | 229 | <parameter>--target=x86_64</parameter>: Ensures building GRUB for
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[ee763b6] | 230 | x86_64 even if building on a 32-bit LFS system. Most EFI firmware
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[672f2a5] | 231 | on x86_64 does not support 32-bit bootloaders.
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| 232 | </para>
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| 233 |
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| 234 | <para>
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| 235 | <option>--target=i386</option>: A few 32-bit x86 platforms have EFI
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| 236 | support. And, some x86_64 platforms have a 32-bit EFI implementation,
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| 237 | but they are very old and rare. Use this instead of
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| 238 | <parameter>--target=x86_64</parameter> if you are
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| 239 | <emphasis role='bold'>absolutely sure</emphasis> that LFS is running
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| 240 | on such a system.
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[e724cb7] | 241 | </para>
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| 242 |
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[756a787] | 243 | </sect2>
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| 244 |
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| 245 | <sect2>
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| 246 | <title>Configuring GRUB</title>
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| 247 |
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| 248 | <para>
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| 249 | Using GRUB to make the LFS system bootable on UEFI platform will be
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| 250 | discussed in <xref linkend="grub-setup"/>.
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| 251 | </para>
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| 252 | </sect2>
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| 253 |
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| 254 | <sect2 role="content">
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| 255 | <title>Contents</title>
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| 256 |
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| 257 | <para>See the page for GRUB in LFS book.</para>
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| 258 | </sect2>
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| 259 |
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| 260 | </sect1>
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