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 lvm2-download-http " ">
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8 | <!ENTITY lvm2-download-ftp "ftp://sources.redhat.com/pub/lvm2/releases/LVM2.&lvm2-version;.tgz">
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9 | <!ENTITY lvm2-md5sum "e7ae07e413120713549cc6dd2a558c75">
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10 | <!ENTITY lvm2-size "1.8 MB">
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11 | <!ENTITY lvm2-buildsize "32 MB (42 MB with tests)">
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12 | <!ENTITY lvm2-time "0.4 SBU (9.7 SBU with tests)">
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13 | ]>
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14 |
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15 | <sect1 id="lvm2" xreflabel="LVM2-&lvm2-version;">
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16 | <?dbhtml filename="lvm2.html"?>
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17 |
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18 | <sect1info>
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19 | <othername>$LastChangedBy$</othername>
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20 | <date>$Date$</date>
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21 | </sect1info>
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22 |
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23 | <title>LVM2-&lvm2-version;</title>
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24 |
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25 | <indexterm zone="lvm2">
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26 | <primary sortas="a-LVM2">LVM2</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 LVM2</title>
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31 |
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32 | <para>
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33 | The <application>LVM2</application> package is a package that manages
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34 | logical partitions. It allows spanning of file systems across multiple
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35 | physical disks and disk partitions and provides for dynamic growing or
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36 | shrinking of logical partitions.
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37 | </para>
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38 |
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39 | &lfs78_checked;
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40 |
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41 | <bridgehead renderas="sect3">Package Information</bridgehead>
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42 | <itemizedlist spacing="compact">
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43 | <listitem>
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44 | <para>
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45 | Download (HTTP): <ulink url="&lvm2-download-http;"/>
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46 | </para>
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47 | </listitem>
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48 | <listitem>
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49 | <para>
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50 | Download (FTP): <ulink url="&lvm2-download-ftp;"/>
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51 | </para>
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52 | </listitem>
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53 | <listitem>
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54 | <para>
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55 | Download MD5 sum: &lvm2-md5sum;
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56 | </para>
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57 | </listitem>
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58 | <listitem>
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59 | <para>
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60 | Download size: &lvm2-size;
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61 | </para>
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62 | </listitem>
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63 | <listitem>
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64 | <para>
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65 | Estimated disk space required: &lvm2-buildsize;
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66 | </para>
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67 | </listitem>
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68 | <listitem>
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69 | <para>
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70 | Estimated build time: &lvm2-time;
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71 | </para>
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72 | </listitem>
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73 | </itemizedlist>
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74 |
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75 | <bridgehead renderas="sect3">LVM2 Dependencies</bridgehead>
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76 |
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77 | <bridgehead renderas="sect4">Optional</bridgehead>
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78 | <para role="optional">
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79 | <xref linkend='mdadm'/> (for checks) and
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80 | <xref linkend='xfsprogs'/> (for checks)
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81 | </para>
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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;/lvm2"/>
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85 | </para>
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86 | </sect2>
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87 |
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88 | <sect2 role="kernel" id="lvm2-kernel">
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89 | <title>Kernel Configuration</title>
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90 |
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91 | <para>
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92 | Enable the following options in the kernel configuration
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93 | and recompile the kernel:
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94 | </para>
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95 |
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96 | <note><para>
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97 | There are several other Device Mapper options in the kernel beyond those
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98 | listed below. In order to get reasonable results if running the
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99 | regression tests, all must be enabled either internally or as a module.
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100 | </para></note>
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101 |
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102 | <screen><literal>Device Drivers --->
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103 | [*] Multiple devices driver support (RAID and LVM) ---> [CONFIG_MD]
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104 | <*/M> Device mapper support [CONFIG_BLK_DEV_DM]
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105 | <*/M/ > Crypt target support [CONFIG_DM_CRYPT]
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106 | <*/M/ > Snapshot target [CONFIG_DM_SNAPSHOT]
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107 | <*/M/ > Mirror target [CONFIG_DM_MIRROR]</literal></screen>
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108 |
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109 | <indexterm zone="lvm2 lvm2-kernel">
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110 | <primary sortas="d-lvm2">lvm2</primary>
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111 | </indexterm>
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112 |
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113 | </sect2>
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114 |
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115 | <sect2 role="installation">
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116 | <title>Installation of LVM2</title>
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117 |
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118 | <para>
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119 | Install <application>LVM2</application> by running the following
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120 | commands:
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121 | </para>
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122 |
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123 | <screen><userinput>./configure --prefix=/usr \
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124 | --exec-prefix= \
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125 | --with-confdir=/etc \
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126 | --enable-applib \
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127 | --enable-cmdlib \
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128 | --enable-pkgconfig \
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129 | --enable-udev_sync &&
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130 | make</userinput></screen>
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131 |
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132 | <para>
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133 | To test the results, issue: <command>make -k
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134 | check</command> as the <systemitem class="username">root</systemitem>
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135 | user. At least one partition on a hard drive must be set up as a Linux
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136 | LVM partition (type 8e00). The test timings are very dependent on the
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137 | speed of the disk(s), and on the number of enabled kernel options. A
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138 | small number of tests may fail.
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139 | <!-- My results: 448 tests: 141 passed, 302 skipped, 5 broken, 0 failed
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140 | version LVM2-2.02.125. Not all kernel settings enabled, but those
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141 | above all were set - Bruce -->
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142 | </para>
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143 |
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144 | <para>
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145 | Now, as the <systemitem class="username">root</systemitem> user:
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146 | </para>
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147 |
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148 | <screen role="root"><userinput>make install</userinput></screen>
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149 |
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150 | </sect2>
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151 |
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152 | <sect2 role="commands">
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153 | <title>Command Explanations</title>
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154 |
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155 | <para>
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156 | <parameter>--enable-applib</parameter>: This switch enables
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157 | building of the shared application library.
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158 | </para>
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159 |
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160 | <para>
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161 | <parameter>--enable-cmdlib</parameter>: This switch enables
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162 | building of the shared command library. It is required
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163 | when building the event daemon.
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164 | </para>
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165 |
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166 | <para>
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167 | <parameter>--enable-pkgconfig</parameter>: This switch enables
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168 | installation of <command>pkg-config</command> support files.
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169 | </para>
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170 |
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171 | <para>
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172 | <parameter>--enable-udev_sync</parameter>: This switch enables
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173 | synchronisation with <application>Udev</application> processing.
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174 | </para>
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175 |
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176 | <para>
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177 | <option>--enable-dmeventd</option>: This switch enables
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178 | building of the <application>Device Mapper</application>
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179 | event daemon.
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180 | </para>
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181 |
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182 | </sect2>
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183 |
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184 | <sect2 role="content">
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185 | <title>Contents</title>
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186 |
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187 | <segmentedlist>
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188 | <segtitle>Installed Programs</segtitle>
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189 | <segtitle>Installed Libraries</segtitle>
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190 | <segtitle>Installed Directories</segtitle>
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191 |
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192 | <seglistitem>
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193 | <seg>
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194 | blkdeactivate, dmeventd (optional), dmsetup, fsadm, lvm, lvmconf,
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195 | lvmdump, and vgimportclone. There are also numerous symbolic links to
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196 | lvm that implement specific functionalities
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197 | </seg>
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198 | <seg>
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199 | libdevmapper.so, liblvm2app.so and liblvm2cmd.so; optional:
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200 | libdevmapper-event.so, libdevmapper-event-lvm2.so,
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201 | libdevmapper-event-lvm2mirror.so, libdevmapper-event-lvm2snapshot.so,
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202 | libdevmapper-event-lvm2raid.so, and libdevmapper-event-lvm2thin.so
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203 | </seg>
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204 | <seg>
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205 | /etc/lvm and
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206 | /lib/device-mapper (optional)
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207 | </seg>
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208 | </seglistitem>
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209 | </segmentedlist>
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210 |
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211 | <variablelist>
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212 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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213 | <?dbfo list-presentation="list"?>
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214 |
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215 | <?dbhtml list-presentation="table"?>
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216 |
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217 | <varlistentry id="blkdeactivate">
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218 | <term><command>blkdeactivate</command></term>
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219 | <listitem>
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220 | <para>
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221 | utility to deactivate block device.
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222 | </para>
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223 | <indexterm zone="lvm2 blkdeactivate">
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224 | <primary sortas="b-blkdeactivate">blkdeactivate</primary>
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225 | </indexterm>
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226 | </listitem>
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227 | </varlistentry>
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228 |
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229 | <varlistentry id="dmeventd">
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230 | <term><command>dmeventd</command></term>
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231 | <listitem>
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232 | <para>
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233 | (optional) is the Device Mapper event daemon.
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234 | </para>
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235 | <indexterm zone="lvm2 dmeventd">
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236 | <primary sortas="b-dmeventd">dmeventd</primary>
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237 | </indexterm>
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238 | </listitem>
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239 | </varlistentry>
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240 |
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241 | <varlistentry id="dmsetup">
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242 | <term><command>dmsetup</command></term>
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243 | <listitem>
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244 | <para>
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245 | is a low level logical volume management tool.
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246 | </para>
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247 | <indexterm zone="lvm2 dmsetup">
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248 | <primary sortas="b-dmsetup">dmsetup</primary>
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249 | </indexterm>
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250 | </listitem>
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251 | </varlistentry>
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252 |
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253 | <varlistentry id="fsadm">
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254 | <term><command>fsadm</command></term>
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255 | <listitem>
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256 | <para>
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257 | is a utility used to resize or check filesystem on a device.
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258 | </para>
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259 | <indexterm zone="lvm2 fsadm">
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260 | <primary sortas="b-fsadm">fsadm</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="lvm">
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266 | <term><command>lvm</command></term>
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267 | <listitem>
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268 | <para>
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269 | provides the command-line tools for <application>LVM2</application>.
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270 | Commands are implemented via sympolic links to this program to
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271 | manage physical devices (pv*), volume groups (vg*) and logical
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272 | volumes (lv*).
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273 | </para>
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274 | <indexterm zone="lvm2 lvm">
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275 | <primary sortas="b-lvm">lvm</primary>
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276 | </indexterm>
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277 | </listitem>
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278 | </varlistentry>
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279 |
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280 | <varlistentry id="lvmconf">
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281 | <term><command>lvmconf</command></term>
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282 | <listitem>
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283 | <para>
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284 | is a script that modifies the locking configuration in
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285 | the <application>LVM2</application> configuration file.
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286 | </para>
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287 | <indexterm zone="lvm2 lvmconf">
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288 | <primary sortas="b-lvmconf">lvmconf</primary>
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289 | </indexterm>
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290 | </listitem>
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291 | </varlistentry>
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292 |
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293 | <varlistentry id="lvmdump">
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294 | <term><command>lvmdump</command></term>
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295 | <listitem>
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296 | <para>
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297 | is a tool used to dump various information concerning
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298 | <application>LVM2</application>.
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299 | </para>
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300 | <indexterm zone="lvm2 lvmdump">
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301 | <primary sortas="b-lvmdump">lvmdump</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 | <varlistentry id="vgimportclone">
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307 | <term><command>vgimportclone</command></term>
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308 | <listitem>
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309 | <para>
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310 | is used to import a duplicated VG (e.g. hardware snapshot).
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311 | </para>
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312 | <indexterm zone="lvm2 vgimportclone">
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313 | <primary sortas="b-vgimportclone">vgimportclone</primary>
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314 | </indexterm>
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315 | </listitem>
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316 | </varlistentry>
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317 |
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318 | <varlistentry id="libdevmapper">
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319 | <term><filename class='libraryfile'>libdevmapper.so</filename></term>
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320 | <listitem>
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321 | <para>
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322 | contains the <application>Device Mapper</application> API
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323 | functions.
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324 | </para>
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325 | <indexterm zone="lvm2 libdevmapper">
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326 | <primary sortas="c-libdevmapper">libdevmapper.so</primary>
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327 | </indexterm>
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328 | </listitem>
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329 | </varlistentry>
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330 |
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331 | </variablelist>
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332 |
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333 | </sect2>
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334 |
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335 | </sect1>
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