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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7 | <!ENTITY efivar-download-http "https://github.com/rhboot/efivar/releases/download/&efivar-version;/efivar-&efivar-version;.tar.bz2">
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8 | <!ENTITY efivar-download-ftp " ">
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9 | <!ENTITY efivar-md5sum "9f067275c5f7aafdd75bfb364280ac9c">
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10 | <!ENTITY efivar-size "108 KB">
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11 | <!ENTITY efivar-buildsize "2.75 MB">
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12 | <!ENTITY efivar-time "less than 0.1 SBU">
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13 | ]>
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14 |
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15 | <sect1 id="efivar" xreflabel="efivar-&efivar-version;">
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16 | <?dbhtml filename="efivar.html"?>
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17 |
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18 | <sect1info>
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19 | <othername>$LastChangedBy: bdubbs $</othername>
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20 | <date>$Date: 2021-02-21 03:35:58 +0800 (日, 2021-02-21) $</date>
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21 | </sect1info>
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22 |
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23 | <title>efivar-&efivar-version;</title>
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24 |
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25 | <indexterm zone="efivar">
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26 | <primary sortas="a-efivar">efivar</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 efivar</title>
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31 |
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32 | <para>
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33 | The <application>efivar</application> package provides tools and
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34 | libraries to manipulate EFI variables.
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35 | </para>
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36 |
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37 | &lfs101_checked;
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38 |
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39 | <bridgehead renderas="sect3">Package Information</bridgehead>
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40 | <itemizedlist spacing="compact">
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41 | <listitem>
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42 | <para>
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43 | Download (HTTP): <ulink url="&efivar-download-http;"/>
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44 | </para>
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45 | </listitem>
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46 | <listitem>
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47 | <para>
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48 | Download (FTP): <ulink url="&efivar-download-ftp;"/>
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49 | </para>
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50 | </listitem>
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51 | <listitem>
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52 | <para>
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53 | Download MD5 sum: &efivar-md5sum;
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54 | </para>
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55 | </listitem>
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56 | <listitem>
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57 | <para>
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58 | Download size: &efivar-size;
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59 | </para>
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60 | </listitem>
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61 | <listitem>
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62 | <para>
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63 | Estimated disk space required: &efivar-buildsize;
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64 | </para>
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65 | </listitem>
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66 | <listitem>
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67 | <para>
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68 | Estimated build time: &efivar-time;
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69 | </para>
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70 | </listitem>
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71 | </itemizedlist>
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72 |
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73 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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74 | <itemizedlist spacing="compact">
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75 | <listitem>
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76 | <para>
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77 | Required patch:
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78 | <ulink url="&patch-root;/efivar-&efivar-version;-gcc_9-1.patch"/>
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79 | </para>
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80 | </listitem>
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81 | </itemizedlist>
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82 |
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83 | <para condition="html" role="usernotes">User Notes:
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84 | <ulink url="&blfs-wiki;/efivar"/></para>
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85 |
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86 | </sect2>
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87 |
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88 | <sect2 role="installation">
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89 | <title>Installation of efivar</title>
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90 |
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91 | <para>
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92 | First, apply a patch to fix an issue building with GCC 9 or later:
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93 | </para>
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94 |
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95 | <screen><userinput>patch -Np1 -i ../efivar-37-gcc_9-1.patch</userinput></screen>
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96 |
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97 | <para>
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98 | Build <application>efivar</application> with the following commands:
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99 | </para>
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100 |
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101 | <screen><userinput>make CFLAGS="-O2 -Wno-stringop-truncation"</userinput></screen>
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102 |
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103 | <para>
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104 | The test suite of this package is dangerous. Running it may trigger
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105 | firmware bugs and make your system unusable without using some special
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106 | hardware to reprogram the firmware.
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107 | </para>
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108 |
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109 | <para>
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110 | Now, as the <systemitem class="username">root</systemitem> user:
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111 | </para>
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112 |
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113 | <screen role="root"><userinput>make install LIBDIR=/usr/lib BINDIR=/bin</userinput></screen>
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114 |
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115 | <para>
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116 | Move the shared libraries to <filename class="directory">/lib</filename>,
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117 | and recreate the symlinks in <filename class="directory">/usr/lib</filename>:
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118 | </para>
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119 |
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120 | <screen role="root"><userinput>mv /usr/lib/libefi{boot,var}.so.* /lib &&
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121 | ln -sfv ../../lib/$(readlink /usr/lib/libefiboot.so) /usr/lib/libefiboot.so &&
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122 | ln -sfv ../../lib/$(readlink /usr/lib/libefivar.so) /usr/lib/libefivar.so
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123 | </userinput></screen>
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124 |
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125 | </sect2>
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126 |
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127 | <sect2 role="commands">
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128 | <title>Command Explanations</title>
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129 |
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130 | <para>
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131 | <parameter>CFLAGS="-O2 -Wno-stringop-truncation"</parameter>:
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132 | This option overrides the default compiler flags to avoid a build failure.
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133 | </para>
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134 |
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135 | <para>
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136 | <parameter>LIBDIR=/usr/lib</parameter>:
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137 | This option overrides the default library directory of the package
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138 | (<filename class="directory">/usr/lib64</filename>, which is not used
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139 | by LFS.)
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140 | </para>
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141 |
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142 | <para>
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143 | <parameter>BINDIR=/bin</parameter>:
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144 | Make <command>efivar</command> avaliable even if
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145 | <filename class="directory">/usr</filename> is offline.
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146 | </para>
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147 | </sect2>
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148 |
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149 | <sect2 role="content">
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150 | <title>Contents</title>
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151 |
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152 | <segmentedlist>
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153 | <segtitle>Installed Programs</segtitle>
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154 | <segtitle>Installed Libraries</segtitle>
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155 | <segtitle>Installed Directories</segtitle>
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156 |
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157 | <seglistitem>
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158 | <seg>
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159 | efivar
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160 | </seg>
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161 | <seg>
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162 | libefiboot.so and libefivar.so
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163 | </seg>
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164 | <seg>
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165 | /usr/include/efivar
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166 | </seg>
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167 | </seglistitem>
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168 | </segmentedlist>
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169 |
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170 | <variablelist>
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171 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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172 | <?dbfo list-presentation="list"?>
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173 | <?dbhtml list-presentation="table"?>
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174 |
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175 | <varlistentry id="efivar-prog">
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176 | <term><command>efivar</command></term>
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177 | <listitem>
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178 | <para>
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179 | is a tool to manipulate UEFI variables
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180 | </para>
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181 | <indexterm zone="efivar efivar-prog">
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182 | <primary sortas="b-efivar">efivar</primary>
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183 | </indexterm>
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184 | </listitem>
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185 | </varlistentry>
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186 |
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187 | <varlistentry id="libefiboot">
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188 | <term><filename class="libraryfile">libefiboot.so</filename></term>
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189 | <listitem>
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190 | <para>
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191 | is a library used by <command>efibootmgr</command>
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192 | </para>
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193 | <indexterm zone="efivar libefiboot">
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194 | <primary sortas="c-libefiboot">libefiboot.so</primary>
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195 | </indexterm>
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196 | </listitem>
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197 | </varlistentry>
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198 |
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199 | <varlistentry id="libefivar">
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200 | <term><filename class="libraryfile">libefivar.so</filename></term>
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201 | <listitem>
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202 | <para>
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203 | is a library for the manipulation of EFI variables
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204 | </para>
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205 | <indexterm zone="efivar libefiboot">
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206 | <primary sortas="c-libefiboot">libefiboot.so</primary>
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207 | </indexterm>
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208 | </listitem>
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209 | </varlistentry>
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210 |
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211 | </variablelist>
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212 |
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213 | </sect2>
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214 |
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215 | </sect1>
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