| 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 alternative bootloaders
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| 29 | and the instructions to use them.
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| 30 | <ulink url="http://trac.clfs.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>-mtune</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">Glibc-&glibc-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:</para>
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| 55 |
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| 56 | <screen os="d2"><userinput remap="test">make check</userinput></screen>
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| 57 |
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| 58 | <para os="f">Install the package:</para>
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| 59 |
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| 60 | <screen os="g"><userinput>make install</userinput></screen>
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| 61 |
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| 62 | </sect2>
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| 63 |
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| 64 | <sect2 id="conf-grub" role="configuration">
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| 65 | <title>Configuring GRUB</title>
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| 66 |
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| 67 | <indexterm zone="conf-grub">
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| 68 | <primary sortas="a-GRUB">GRUB</primary>
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| 69 | <secondary>configuring</secondary></indexterm>
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| 70 |
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| 71 | <indexterm zone="conf-grub">
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| 72 | <primary sortas="e-/etc/default/grub">/etc/default/grub</primary>
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| 73 | </indexterm>
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| 74 |
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| 75 | <para>Now that grub is installed, we need to configure the defaults that
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| 76 | will be used to generate the configuration after we install the kernel.
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| 77 | Create this file with the following:</para>
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| 78 |
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| 79 | <screen><userinput>install -m755 -dv /etc/default
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| 80 | cat > /etc/default/grub << "EOF"
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| 81 | <literal># Begin /etc/default/grub
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| 82 |
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| 83 | GRUB_DEFAULT=0
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| 84 | #GRUB_SAVEDEFAULT=true
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| 85 | GRUB_HIDDEN_TIMEOUT=
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| 86 | GRUB_HIDDEN_TIMEOUT_QUIET=false
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| 87 | GRUB_TIMEOUT=10
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| 88 | GRUB_DISTRIBUTOR=Cross-LFS
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| 89 |
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| 90 | GRUB_CMDLINE_LINUX=""
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| 91 | GRUB_CMDLINE_LINUX_DEFAULT=""
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| 92 |
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| 93 | #GRUB_TERMINAL=console
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| 94 | #GRUB_GFXMODE=640x480
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| 95 | #GRUB_GFXPAYLOAD_LINUX=keep
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| 96 |
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| 97 | #GRUB_DISABLE_LINUX_UUID=true
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| 98 | #GRUB_DISABLE_LINUX_RECOVERY=true
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| 99 |
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| 100 | #GRUB_INIT_TUNE="480 440 1"
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| 101 |
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| 102 | #GRUB_DISABLE_OS_PROBER=true
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| 103 |
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| 104 | # End /etc/default/grub</literal>
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| 105 | EOF</userinput></screen>
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| 106 |
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| 107 | <variablelist>
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| 108 | <title>The meaning of the above options and possible alternate
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| 109 | values:</title>
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| 110 |
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| 111 | <varlistentry>
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| 112 | <term><parameter>GRUB_DEFAULT=</parameter></term>
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| 113 | <listitem>
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| 114 | <para>Write Me</para>
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| 115 | </listitem>
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| 116 | </varlistentry>
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| 117 |
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| 118 | <varlistentry>
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| 119 | <term><parameter>GRUB_SAVEDEFAULT=</parameter></term>
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| 120 | <listitem>
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| 121 | <para>Write Me</para>
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| 122 | </listitem>
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| 123 | </varlistentry>
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| 124 |
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| 125 | <varlistentry>
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| 126 | <term><parameter>GRUB_HIDDEN_TIMEOUT=</parameter></term>
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| 127 | <listitem>
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| 128 | <para>Write Me</para>
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| 129 | </listitem>
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| 130 | </varlistentry>
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| 131 |
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| 132 | <varlistentry>
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| 133 | <term><parameter>GRUB_HIDDEN_TIMEOUT_QUIET=</parameter></term>
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| 134 | <listitem>
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| 135 | <para>Write Me</para>
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| 136 | </listitem>
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| 137 | </varlistentry>
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| 138 |
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| 139 | <varlistentry>
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| 140 | <term><parameter>GRUB_TIMEOUT=</parameter></term>
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| 141 | <listitem>
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| 142 | <para>Write Me</para>
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| 143 | </listitem>
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| 144 | </varlistentry>
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| 145 |
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| 146 | <varlistentry>
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| 147 | <term><parameter>GRUB_DISTRIBUTOR=</parameter></term>
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| 148 | <listitem>
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| 149 | <para>Write Me</para>
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| 150 | </listitem>
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| 151 | </varlistentry>
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| 152 |
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| 153 | <varlistentry>
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| 154 | <term><parameter>GRUB_CMDLINE_LINUX=</parameter></term>
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| 155 | <listitem>
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| 156 | <para>Write Me</para>
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| 157 | </listitem>
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| 158 | </varlistentry>
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| 159 |
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| 160 | <varlistentry>
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| 161 | <term><parameter>GRUB_CMDLINE_LINUX_DEFAULT=</parameter></term>
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| 162 | <listitem>
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| 163 | <para>Write Me</para>
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| 164 | </listitem>
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| 165 | </varlistentry>
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| 166 |
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| 167 | <varlistentry>
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| 168 | <term><parameter>GRUB_TERMINAL=</parameter></term>
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| 169 | <listitem>
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| 170 | <para>Write Me</para>
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| 171 | </listitem>
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| 172 | </varlistentry>
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| 173 |
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| 174 | <varlistentry>
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| 175 | <term><parameter>GRUB_GFXMODE=</parameter></term>
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| 176 | <listitem>
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| 177 | <para>Write Me</para>
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| 178 | </listitem>
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| 179 | </varlistentry>
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| 180 |
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| 181 | <varlistentry>
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| 182 | <term><parameter>GRUB_GFXPAYLOAD_LINUX=</parameter></term>
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| 183 | <listitem>
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| 184 | <para>Write Me</para>
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| 185 | </listitem>
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| 186 | </varlistentry>
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| 187 |
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| 188 | <varlistentry>
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| 189 | <term><parameter>GRUB_DEFAULT=</parameter></term>
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| 190 | <listitem>
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| 191 | <para>Write Me</para>
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| 192 | </listitem>
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| 193 | </varlistentry>
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| 194 |
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| 195 | <varlistentry>
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| 196 | <term><parameter>GRUB_DISABLE_LINUX_UUID=</parameter></term>
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| 197 | <listitem>
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| 198 | <para>Write Me</para>
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| 199 | </listitem>
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| 200 | </varlistentry>
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| 201 |
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| 202 | <varlistentry>
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| 203 | <term><parameter>GRUB_DISABLE_LINUX_RECOVERY=</parameter></term>
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| 204 | <listitem>
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| 205 | <para>Write Me</para>
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| 206 | </listitem>
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| 207 | </varlistentry>
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| 208 |
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| 209 | <varlistentry>
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| 210 | <term><parameter>GRUB_INIT_TUNE=</parameter></term>
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| 211 | <listitem>
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| 212 | <para>Write Me</para>
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| 213 | </listitem>
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| 214 | </varlistentry>
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| 215 |
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| 216 | <varlistentry>
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| 217 | <term><parameter>GRUB_DISABLE_OS_PROBER=</parameter></term>
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| 218 | <listitem>
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| 219 | <para>Write Me</para>
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| 220 | </listitem>
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| 221 | </varlistentry>
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| 222 |
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| 223 | </variablelist>
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| 224 |
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| 225 | </sect2>
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| 226 |
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| 227 | <sect2 id="contents-grub" role="content">
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| 228 | <title>Contents of GRUB</title>
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| 229 |
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| 230 | <segmentedlist>
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| 231 | <segtitle>Installed programs</segtitle>
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| 232 | <segtitle>Installed directories</segtitle>
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| 233 |
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| 234 | <seglistitem>
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| 235 | <seg>grub, grub-install, grub-md5-crypt, grub-set-default, grub-terminfo, and mbchk</seg>
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| 236 | <seg>/usr/lib/grub, /boot/grub</seg>
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| 237 | </seglistitem>
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| 238 | </segmentedlist>
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| 239 |
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| 240 | <variablelist>
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| 241 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 242 | <?dbfo list-presentation="list"?>
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| 243 | <?dbhtml list-presentation="table"?>
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| 244 |
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| 245 | <varlistentry id="grub">
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| 246 | <term><command>grub</command></term>
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| 247 | <listitem>
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| 248 | <para>The Grand Unified Bootloader's command shell</para>
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| 249 | <indexterm zone="ch-system-grub grub">
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| 250 | <primary sortas="b-grub">grub</primary>
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| 251 | </indexterm>
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| 252 | </listitem>
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| 253 | </varlistentry>
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| 254 |
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| 255 | <varlistentry id="grub-install">
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| 256 | <term><command>grub-install</command></term>
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| 257 | <listitem>
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| 258 | <para>Installs GRUB on the given device</para>
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| 259 | <indexterm zone="ch-system-grub grub-install">
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| 260 | <primary sortas="b-grub-install">grub-install</primary>
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| 261 | </indexterm>
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| 262 | </listitem>
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| 263 | </varlistentry>
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| 264 |
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| 265 | <varlistentry id="grub-md5-crypt">
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| 266 | <term><command>grub-md5-crypt</command></term>
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| 267 | <listitem>
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| 268 | <para>Encrypts a password in MD5 format</para>
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| 269 | <indexterm zone="ch-system-grub grub-md5-crypt">
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| 270 | <primary sortas="b-grub-md5-crypt">grub-md5-crypt</primary>
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| 271 | </indexterm>
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| 272 | </listitem>
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| 273 | </varlistentry>
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| 274 |
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| 275 | <varlistentry id="grub-set-default">
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| 276 | <term><command>grub-set-default</command></term>
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| 277 | <listitem>
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| 278 | <para>Sets the default boot entry for GRUB</para>
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| 279 | <indexterm zone="ch-system-grub grub-set-default">
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| 280 | <primary sortas="b-grub-set-default">grub-set-default</primary>
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| 281 | </indexterm>
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| 282 | </listitem>
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| 283 | </varlistentry>
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| 284 |
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| 285 | <varlistentry id="grub-terminfo">
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| 286 | <term><command>grub-terminfo</command></term>
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| 287 | <listitem>
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| 288 | <para>Generates a terminfo command from a terminfo name; it can be
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| 289 | employed if an unknown terminal is being used</para>
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| 290 | <indexterm zone="ch-system-grub grub-terminfo">
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| 291 | <primary sortas="b-grub-terminfo">grub-terminfo</primary>
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| 292 | </indexterm>
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| 293 | </listitem>
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| 294 | </varlistentry>
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| 295 |
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| 296 | <varlistentry id="mbchk">
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| 297 | <term><command>mbchk</command></term>
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| 298 | <listitem>
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| 299 | <para>Checks the format of a multi-boot kernel</para>
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| 300 | <indexterm zone="ch-system-grub mbchk">
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| 301 | <primary sortas="b-mbchk">mbchk</primary>
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| 302 | </indexterm>
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| 303 | </listitem>
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| 304 | </varlistentry>
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| 305 |
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| 306 | </variablelist>
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| 307 |
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| 308 | </sect2>
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| 309 |
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| 310 | </sect1>
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