[f896e21c] | 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 |
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| 8 | <sect1 id="ch-system-udev" role="wrap">
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| 9 | <?dbhtml filename="udev.html"?>
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| 10 |
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| 11 | <sect1info condition="script">
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| 12 | <productname>udev</productname>
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| 13 | <productnumber>&systemd-version;</productnumber>
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| 14 | <address>&systemd-url;</address>
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| 15 | </sect1info>
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| 16 |
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| 17 | <title>Udev-&systemd-version; (Extracted from systemd-&systemd-version;)</title>
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| 18 |
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| 19 | <indexterm zone="ch-system-udev">
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| 20 | <primary sortas="a-Udev">Udev</primary>
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| 21 | </indexterm>
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| 22 |
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| 23 | <sect2 role="package">
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| 24 | <title/>
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| 25 |
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| 26 | <para>The Udev package contains programs for dynamic creation of device
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| 27 | nodes. The development of udev has been merged with systemd, but
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| 28 | most of systemd is incompatible with LFS. Here we build and install just
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| 29 | the needed udev files.</para>
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| 30 |
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| 31 | <segmentedlist>
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| 32 | <segtitle>&buildtime;</segtitle>
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| 33 | <segtitle>&diskspace;</segtitle>
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| 34 |
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| 35 | <seglistitem>
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| 36 | <seg>&systemd-ch6-sbu;</seg>
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| 37 | <seg>&systemd-ch6-du;</seg>
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| 38 | </seglistitem>
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| 39 | </segmentedlist>
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| 40 | </sect2>
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| 41 |
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| 42 | <sect2 role="installation">
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| 43 | <title>Installation of Udev</title>
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| 44 |
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| 45 | <para>The udev-lfs tarball contains LFS-specific files used to build
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| 46 | Udev. Unpack it into the Udev source directory:</para>
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| 47 |
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| 48 | <screen><userinput remap="pre">tar -xvf ../&udev-lfs;.tar.bz2</userinput></screen>
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| 49 |
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| 50 | <para>Compile the package:</para>
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| 51 |
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| 52 | <screen><userinput remap="make">make -f udev-lfs-&systemd-version;/Makefile.lfs</userinput></screen>
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| 53 |
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| 54 | <para>Install the package:</para>
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| 55 |
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| 56 | <screen><userinput remap="install">make -f udev-lfs-&systemd-version;/Makefile.lfs install</userinput></screen>
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| 57 | </sect2>
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| 58 |
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| 59 | <sect2 id="contents-udev" role="content">
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| 60 | <title>Contents of Udev</title>
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| 61 |
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| 62 | <segmentedlist>
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| 63 | <segtitle>Installed programs</segtitle>
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| 64 | <segtitle>Installed libraries</segtitle>
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| 65 | <segtitle>Installed directories</segtitle>
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| 66 |
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| 67 | <seglistitem>
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| 68 | <seg>accelerometer, ata_id, cdrom_id, collect, mtd_probe,
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[2191632] | 69 | scsi_id, v4l_id, udevadm, and udevd</seg>
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[f896e21c] | 70 |
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[2191632] | 71 | <seg>libudev.so</seg>
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[f896e21c] | 72 |
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| 73 | <seg>/etc/udev, /lib/udev, /lib/firmware, /usr/share/doc/udev</seg>
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| 74 | </seglistitem>
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| 75 | </segmentedlist>
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| 76 |
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| 77 | <variablelist>
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| 78 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 79 | <?dbfo list-presentation="list"?>
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| 80 | <?dbhtml list-presentation="table"?>
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| 81 |
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| 82 | <varlistentry id="ata_id">
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| 83 | <term><command>ata_id</command></term>
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| 84 | <listitem>
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| 85 | <para>Provides Udev with a unique string and
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| 86 | additional information (uuid, label) for an ATA drive</para>
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| 87 | <indexterm zone="ch-system-udev ata_id">
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| 88 | <primary sortas="b-ata_id">ata_id</primary>
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| 89 | </indexterm>
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| 90 | </listitem>
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| 91 | </varlistentry>
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| 92 |
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| 93 | <varlistentry id="cdrom_id">
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| 94 | <term><command>cdrom_id</command></term>
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| 95 | <listitem>
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| 96 | <para>Provides Udev with the capabilities of a
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| 97 | CD-ROM or DVD-ROM drive</para>
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| 98 | <indexterm zone="ch-system-udev cdrom_id">
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| 99 | <primary sortas="b-cdrom_id">cdrom_id</primary>
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| 100 | </indexterm>
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| 101 | </listitem>
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| 102 | </varlistentry>
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| 103 |
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| 104 | <varlistentry id="collect">
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| 105 | <term><command>collect</command></term>
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| 106 | <listitem>
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| 107 | <para>Given an ID for the current uevent and a list of
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| 108 | IDs (for all target uevents), registers the current ID
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| 109 | and indicates whether all target IDs have been registered</para>
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| 110 | <indexterm zone="ch-system-udev collect">
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| 111 | <primary sortas="b-collect">collect</primary>
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| 112 | </indexterm>
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| 113 | </listitem>
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| 114 | </varlistentry>
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| 115 |
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| 116 | <varlistentry id="scsi_id">
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| 117 | <term><command>scsi_id</command></term>
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| 118 | <listitem>
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| 119 | <para>Provides Udev with a unique SCSI identifier
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| 120 | based on the data returned from sending a SCSI INQUIRY command to
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| 121 | the specified device</para>
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| 122 | <indexterm zone="ch-system-udev scsi_id">
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| 123 | <primary sortas="b-scsi_id">scsi_id</primary>
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| 124 | </indexterm>
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| 125 | </listitem>
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| 126 | </varlistentry>
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| 127 |
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| 128 | <varlistentry id="udevadm">
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| 129 | <term><command>udevadm</command></term>
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| 130 | <listitem>
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| 131 | <para>Generic udev administration tool: controls the udevd daemon,
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| 132 | provides info from the Udev database, monitors uevents, waits for
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| 133 | uevents to finish, tests Udev configuration, and triggers uevents
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| 134 | for a given device</para>
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| 135 | <indexterm zone="ch-system-udev udevadm">
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| 136 | <primary sortas="b-udevadm">udevadm</primary>
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| 137 | </indexterm>
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| 138 | </listitem>
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| 139 | </varlistentry>
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| 140 |
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| 141 | <varlistentry id="udevd">
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| 142 | <term><command>udevd</command></term>
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| 143 | <listitem>
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| 144 | <para>A daemon that listens for uevents on the netlink socket,
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| 145 | creates devices and runs the configured external programs in
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| 146 | response to these uevents</para>
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| 147 | <indexterm zone="ch-system-udev udevd">
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| 148 | <primary sortas="b-udevd">udevd</primary>
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| 149 | </indexterm>
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| 150 | </listitem>
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| 151 | </varlistentry>
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| 152 |
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| 153 | <varlistentry id="libudev">
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| 154 | <term><filename class="libraryfile">libudev</filename></term>
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| 155 | <listitem>
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| 156 | <para>A library interface to udev device information</para>
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| 157 | <indexterm zone="ch-system-udev libudev">
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| 158 | <primary sortas="c-libudev">libudev</primary>
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| 159 | </indexterm>
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| 160 | </listitem>
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| 161 | </varlistentry>
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| 162 |
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| 163 | <varlistentry id="etc-udev">
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| 164 | <term><filename class="directory">/etc/udev</filename></term>
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| 165 | <listitem>
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| 166 | <para>Contains Udev configuration files,
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| 167 | device permissions, and rules for device naming</para>
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| 168 | <indexterm zone="ch-system-udev etc-udev">
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| 169 | <primary sortas="e-/etc/udev">/etc/udev</primary>
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| 170 | </indexterm>
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| 171 | </listitem>
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| 172 | </varlistentry>
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| 173 |
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| 174 | </variablelist>
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| 175 |
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| 176 | </sect2>
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| 177 |
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| 178 | </sect1>
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