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 | <sect1 id="ch-system-grub" role="wrap">
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8 | <?dbhtml filename="grub.html"?>
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9 |
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10 | <title>GRUB-&grub-version;</title>
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11 |
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12 | <indexterm zone="ch-system-grub">
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13 | <primary sortas="a-GRUB">GRUB</primary>
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14 | </indexterm>
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15 |
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16 | <sect2 role="package">
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17 | <title/>
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18 |
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19 | <para>The GRUB package contains the GRand Unified Bootloader.</para>
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20 |
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21 | </sect2>
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22 |
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23 | <sect2 role="installation">
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24 | <title>Installation of GRUB</title>
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25 |
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26 | <note os="n1">
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27 | <para>If you would like use a different bootloader than this
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28 | one you can go to the following link for alterative bootloaders
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29 | and the instructions to use them.
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30 | <ulink url="http://trac.cross-lfs.org/wiki/bootloaders"/></para>
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31 | </note>
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32 |
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33 | <note os="n2">
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34 | <para>This package is known to have issues when its default optimization
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35 | flags (including the <option>-march</option> and <option>-mcpu</option>
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36 | options) are changed. If any environment variables that override default
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37 | optimizations have been defined, such as <envar>CFLAGS</envar> and
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38 | <envar>CXXFLAGS</envar>, unset them when building GRUB.</para>
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39 | </note>
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40 |
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41 | <para os="s1">EGLIBC-&eglibc-version; does not declare gets():</para>
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42 |
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43 | <screen os="s2"><userinput>sed -i -e '/gets is a/d' grub-core/gnulib/stdio.in.h</userinput></screen>
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44 |
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45 | <para os="a">Prepare GRUB for compilation:</para>
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46 |
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47 | <screen os="b"><userinput>./configure --prefix=/usr \
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48 | --sysconfdir=/etc --disable-werror</userinput></screen>
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49 |
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50 | <para os="c">Compile the package:</para>
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51 |
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52 | <screen os="d"><userinput>make</userinput></screen>
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53 |
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54 | <para os="e">To test GRUB you must have QEMU installed and then, issue:
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55 | <userinput>make check</userinput>.</para>
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56 |
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57 | <para os="f">Install the package:</para>
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58 |
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59 | <screen os="g"><userinput>make install</userinput></screen>
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60 |
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61 | </sect2>
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62 |
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63 | <sect2 id="conf-grub" role="configuration">
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64 | <title>Configuring GRUB</title>
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65 |
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66 | <indexterm zone="conf-grub">
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67 | <primary sortas="a-GRUB">GRUB</primary>
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68 | <secondary>configuring</secondary></indexterm>
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69 |
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70 | <indexterm zone="conf-grub">
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71 | <primary sortas="e-/etc/default/grub">/etc/default/grub</primary>
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72 | </indexterm>
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73 |
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74 | <para>Now that grub is installed, we need to configure the defaults that
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75 | will be used to generate the configuration after we install the kernel.
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76 | Create this file with the following:</para>
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77 |
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78 | <screen><userinput>install -m755 -dv /etc/default
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79 | cat > /etc/default/grub << "EOF"
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80 | <literal># Begin /etc/default/grub
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81 |
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82 | GRUB_DEFAULT=0
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83 | #GRUB_SAVEDEFAULT=true
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84 | GRUB_HIDDEN_TIMEOUT=
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85 | GRUB_HIDDEN_TIMEOUT_QUIET=false
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86 | GRUB_TIMEOUT=10
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87 | GRUB_DISTRIBUTOR=Cross-LFS
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88 |
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89 | GRUB_CMDLINE_LINUX=""
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90 | GRUB_CMDLINE_LINUX_DEFAULT=""
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91 |
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92 | #GRUB_TERMINAL=console
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93 | #GRUB_GFXMODE=640x480
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94 | #GRUB_GFXPAYLOAD_LINUX=keep
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95 |
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96 | #GRUB_DISABLE_LINUX_UUID=true
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97 | #GRUB_DISABLE_LINUX_RECOVERY=true
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98 |
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99 | #GRUB_INIT_TUNE="480 440 1"
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100 |
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101 | #GRUB_DISABLE_OS_PROBER=true
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102 |
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103 | # End /etc/default/grub</literal>
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104 | EOF</userinput></screen>
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105 |
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106 | <variablelist>
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107 | <title>The meaning of the above options and possible alternate
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108 | values:</title>
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109 |
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110 | <varlistentry>
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111 | <term><parameter>GRUB_DEFAULT=</parameter></term>
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112 | <listitem>
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113 | <para>Write Me</para>
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114 | </listitem>
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115 | </varlistentry>
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116 |
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117 | <varlistentry>
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118 | <term><parameter>GRUB_SAVEDEFAULT=</parameter></term>
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119 | <listitem>
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120 | <para>Write Me</para>
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121 | </listitem>
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122 | </varlistentry>
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123 |
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124 | <varlistentry>
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125 | <term><parameter>GRUB_HIDDEN_TIMEOUT=</parameter></term>
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126 | <listitem>
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127 | <para>Write Me</para>
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128 | </listitem>
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129 | </varlistentry>
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130 |
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131 | <varlistentry>
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132 | <term><parameter>GRUB_HIDDEN_TIMEOUT_QUIET=</parameter></term>
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133 | <listitem>
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134 | <para>Write Me</para>
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135 | </listitem>
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136 | </varlistentry>
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137 |
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138 | <varlistentry>
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139 | <term><parameter>GRUB_TIMEOUT=</parameter></term>
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140 | <listitem>
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141 | <para>Write Me</para>
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142 | </listitem>
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143 | </varlistentry>
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144 |
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145 | <varlistentry>
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146 | <term><parameter>GRUB_DISTRIBUTOR=</parameter></term>
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147 | <listitem>
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148 | <para>Write Me</para>
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149 | </listitem>
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150 | </varlistentry>
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151 |
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152 | <varlistentry>
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153 | <term><parameter>GRUB_CMDLINE_LINUX=</parameter></term>
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154 | <listitem>
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155 | <para>Write Me</para>
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156 | </listitem>
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157 | </varlistentry>
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158 |
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159 | <varlistentry>
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160 | <term><parameter>GRUB_CMDLINE_LINUX_DEFAULT=</parameter></term>
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161 | <listitem>
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162 | <para>Write Me</para>
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163 | </listitem>
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164 | </varlistentry>
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165 |
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166 | <varlistentry>
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167 | <term><parameter>GRUB_TERMINAL=</parameter></term>
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168 | <listitem>
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169 | <para>Write Me</para>
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170 | </listitem>
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171 | </varlistentry>
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172 |
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173 | <varlistentry>
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174 | <term><parameter>GRUB_GFXMODE=</parameter></term>
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175 | <listitem>
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176 | <para>Write Me</para>
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177 | </listitem>
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178 | </varlistentry>
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179 |
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180 | <varlistentry>
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181 | <term><parameter>GRUB_GFXPAYLOAD_LINUX=</parameter></term>
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182 | <listitem>
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183 | <para>Write Me</para>
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184 | </listitem>
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185 | </varlistentry>
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186 |
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187 | <varlistentry>
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188 | <term><parameter>GRUB_DEFAULT=</parameter></term>
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189 | <listitem>
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190 | <para>Write Me</para>
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191 | </listitem>
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192 | </varlistentry>
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193 |
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194 | <varlistentry>
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195 | <term><parameter>GRUB_DISABLE_LINUX_UUID=</parameter></term>
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196 | <listitem>
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197 | <para>Write Me</para>
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198 | </listitem>
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199 | </varlistentry>
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200 |
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201 | <varlistentry>
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202 | <term><parameter>GRUB_DISABLE_LINUX_RECOVERY=</parameter></term>
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203 | <listitem>
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204 | <para>Write Me</para>
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205 | </listitem>
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206 | </varlistentry>
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207 |
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208 | <varlistentry>
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209 | <term><parameter>GRUB_INIT_TUNE=</parameter></term>
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210 | <listitem>
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211 | <para>Write Me</para>
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212 | </listitem>
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213 | </varlistentry>
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214 |
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215 | <varlistentry>
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216 | <term><parameter>GRUB_DISABLE_OS_PROBER=</parameter></term>
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217 | <listitem>
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218 | <para>Write Me</para>
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219 | </listitem>
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220 | </varlistentry>
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221 |
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222 | </variablelist>
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223 |
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224 | </sect2>
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225 |
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226 | <sect2 id="contents-grub" role="content">
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227 | <title>Contents of GRUB</title>
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228 |
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229 | <segmentedlist>
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230 | <segtitle>Installed programs</segtitle>
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231 | <segtitle>Installed directories</segtitle>
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232 |
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233 | <seglistitem>
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234 | <seg>grub, grub-install, grub-md5-crypt, grub-set-default, grub-terminfo, and mbchk</seg>
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235 | <seg>/usr/lib/grub, /boot/grub</seg>
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236 | </seglistitem>
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237 | </segmentedlist>
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238 |
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239 | <variablelist>
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240 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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241 | <?dbfo list-presentation="list"?>
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242 | <?dbhtml list-presentation="table"?>
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243 |
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244 | <varlistentry id="grub">
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245 | <term><command>grub</command></term>
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246 | <listitem>
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247 | <para>The Grand Unified Bootloader's command shell</para>
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248 | <indexterm zone="ch-system-grub grub">
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249 | <primary sortas="b-grub">grub</primary>
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250 | </indexterm>
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251 | </listitem>
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252 | </varlistentry>
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253 |
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254 | <varlistentry id="grub-install">
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255 | <term><command>grub-install</command></term>
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256 | <listitem>
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257 | <para>Installs GRUB on the given device</para>
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258 | <indexterm zone="ch-system-grub grub-install">
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259 | <primary sortas="b-grub-install">grub-install</primary>
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260 | </indexterm>
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261 | </listitem>
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262 | </varlistentry>
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263 |
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264 | <varlistentry id="grub-md5-crypt">
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265 | <term><command>grub-md5-crypt</command></term>
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266 | <listitem>
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267 | <para>Encrypts a password in MD5 format</para>
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268 | <indexterm zone="ch-system-grub grub-md5-crypt">
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269 | <primary sortas="b-grub-md5-crypt">grub-md5-crypt</primary>
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270 | </indexterm>
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271 | </listitem>
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272 | </varlistentry>
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273 |
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274 | <varlistentry id="grub-set-default">
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275 | <term><command>grub-set-default</command></term>
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276 | <listitem>
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277 | <para>Sets the default boot entry for GRUB</para>
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278 | <indexterm zone="ch-system-grub grub-set-default">
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279 | <primary sortas="b-grub-set-default">grub-set-default</primary>
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280 | </indexterm>
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281 | </listitem>
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282 | </varlistentry>
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283 |
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284 | <varlistentry id="grub-terminfo">
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285 | <term><command>grub-terminfo</command></term>
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286 | <listitem>
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287 | <para>Generates a terminfo command from a terminfo name; it can be
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288 | employed if an unknown terminal is being used</para>
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289 | <indexterm zone="ch-system-grub grub-terminfo">
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290 | <primary sortas="b-grub-terminfo">grub-terminfo</primary>
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291 | </indexterm>
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292 | </listitem>
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293 | </varlistentry>
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294 |
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295 | <varlistentry id="mbchk">
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296 | <term><command>mbchk</command></term>
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297 | <listitem>
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298 | <para>Checks the format of a multi-boot kernel</para>
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299 | <indexterm zone="ch-system-grub mbchk">
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300 | <primary sortas="b-mbchk">mbchk</primary>
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301 | </indexterm>
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302 | </listitem>
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303 | </varlistentry>
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304 |
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305 | </variablelist>
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306 |
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307 | </sect2>
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308 |
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309 | </sect1>
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