[7ef22cff] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[6732c094] | 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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[7ef22cff] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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[d4bf650a] | 6 | <!ENTITY autofs-patch-dir "http://ftp.kernel.org/pub/linux/daemons/autofs/v5">
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| 7 | <!ENTITY autofs-download-http "http://ftp.kernel.org/pub/linux/daemons/autofs/v5/autofs-&autofs-version;.tar.bz2">
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[32d0e29] | 8 | <!ENTITY autofs-download-ftp "ftp://ftp.kernel.org/pub/linux/daemons/autofs/v5/autofs-&autofs-version;.tar.bz2">
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[d4bf650a] | 9 | <!ENTITY autofs-md5sum "27839fe6fa8105b2b7d31bc922fd7cf6">
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| 10 | <!ENTITY autofs-size "221 KB">
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[32d0e29] | 11 | <!ENTITY autofs-buildsize "9 MB">
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[460c6edb] | 12 | <!ENTITY autofs-time "less than 0.1 SBU">
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[7ef22cff] | 13 | ]>
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| 14 |
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[32d0e29] | 15 | <sect1 id="autofs" xreflabel="Autofs-&autofs-version;">
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[d3ad3271] | 16 | <?dbhtml filename="autofs.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>Automate Mounting of File Systems</title>
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| 24 |
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| 25 | <indexterm zone="autofs">
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| 26 | <primary sortas="a-Autofs">Autofs</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 Autofs</title>
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| 31 |
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[32d0e29] | 32 | <para>The <application>Autofs</application> package contains userspace
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[d3ad3271] | 33 | tools that work with the kernel to mount and un-mount removable file
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[d4bf650a] | 34 | systems. The primary use is to mount external network file systems like
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[32d0e29] | 35 | NFS (see <xref linkend="nfs-utils"/>) or Samba (see <xref linkend="samba3"/>)
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[d4bf650a] | 36 | on demand.</para>
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[fd7e0ed6] | 37 |
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[d4bf650a] | 38 | <para>It may also be useful for allowing users to mount floppies, cdroms and
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[d3ad3271] | 39 | other removable storage devices without requiring the system
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[d4bf650a] | 40 | administrator to mount the devices although this capability is now generally
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| 41 | provided by HAL (see <xref linkend="hal"/>). This may not be ideal for all
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[d3ad3271] | 42 | installations, so be aware of the risks before implementing this feature.</para>
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| 43 |
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| 44 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 45 | <itemizedlist spacing="compact">
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| 46 | <listitem>
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| 47 | <para>Download (HTTP): <ulink url="&autofs-download-http;"/></para>
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| 48 | </listitem>
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| 49 | <listitem>
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| 50 | <para>Download (FTP): <ulink url="&autofs-download-ftp;"/></para>
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| 51 | </listitem>
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| 52 | <listitem>
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| 53 | <para>Download MD5 sum: &autofs-md5sum;</para>
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| 54 | </listitem>
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| 55 | <listitem>
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| 56 | <para>Download size: &autofs-size;</para>
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| 57 | </listitem>
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| 58 | <listitem>
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| 59 | <para>Estimated disk space required: &autofs-buildsize;</para>
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| 60 | </listitem>
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| 61 | <listitem>
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| 62 | <para>Estimated build time: &autofs-time;</para>
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| 63 | </listitem>
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| 64 | </itemizedlist>
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| 65 |
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| 66 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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[32d0e29] | 67 |
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[65bea2a5] | 68 | <para>Recommended Patches: There are frequent patches issued for
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| 69 | <application>Autofs</application>. One method you can use to get the
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| 70 | current patches requires first installing the <xref linkend="wget"/>
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| 71 | package. After ensuring the <command>wget</command> command is installed
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| 72 | in a directory identified in the <envar>PATH</envar> variable, start in
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| 73 | the same directory as the main tar file and issue the following
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| 74 | commands:</para>
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[fd7e0ed6] | 75 |
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[d4bf650a] | 76 | <screen><userinput>wget &autofs-patch-dir;/patch_order-&autofs-version; &&
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[32d0e29] | 77 | sed 's;autofs;&autofs-patch-dir;/autofs;' \
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| 78 | patch_order-&autofs-version; > wget-list &&
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[d4bf650a] | 79 | wget -i wget-list</userinput></screen>
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[fd7e0ed6] | 80 |
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[81066706] | 81 | <bridgehead renderas="sect3">Autofs Dependencies</bridgehead>
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[50d1a60] | 82 |
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[81066706] | 83 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 84 | <para role="optional"><xref linkend="openldap"/> and
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| 85 | <xref linkend="cyrus-sasl"/></para>
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[50d1a60] | 86 |
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[3597eb6] | 87 | <para condition="html" role="usernotes">User Notes:
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| 88 | <ulink url="&blfs-wiki;/autofs"/></para>
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| 89 |
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[d3ad3271] | 90 | </sect2>
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| 91 |
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| 92 | <sect2 role="kernel" id="autofs-kernel">
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| 93 | <title>Kernel Configuration</title>
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| 94 |
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| 95 | <indexterm zone="autofs autofs-kernel">
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| 96 | <primary sortas="d-Automounter">Automounter</primary>
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| 97 | </indexterm>
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| 98 |
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| 99 | <para>Verify that kernel support has been compiled in or built as
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| 100 | modules in the following areas:</para>
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| 101 |
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[6a0e6e4] | 102 | <screen><literal>File systems ⇒
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[e19ad480] | 103 | Kernel automounter version 4 support Y or M
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[6a0e6e4] | 104 | Network File Systems ⇒
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| 105 | NFS file system support Y or M (optional)
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| 106 | SMB file system support Y or M (optional)</literal></screen>
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[d612b9f] | 107 |
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[d3ad3271] | 108 | <para>Recompile and install the new kernel, if necessary.</para>
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[7ef22cff] | 109 |
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[d3ad3271] | 110 | </sect2>
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[0290a023] | 111 |
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[d3ad3271] | 112 | <sect2 role="installation">
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[d612b9f] | 113 |
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[d3ad3271] | 114 | <title>Installation of Autofs</title>
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| 115 |
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[32d0e29] | 116 | <para>Install <application>Autofs</application> by running the following
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[d3ad3271] | 117 | commands:</para>
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| 118 |
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[410e228b] | 119 | <screen><userinput>for f in `cat ../patch_order-&autofs-version;`; do
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[d4bf650a] | 120 | patch -Np1 -i ../$f
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| 121 | done &&
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[6b104248] | 122 | ./configure --prefix=/ --mandir=/usr/share/man &&
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[d3ad3271] | 123 | make</userinput></screen>
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| 124 |
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[d4bf650a] | 125 | <para>This package does not come with a test suite.</para>
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| 126 |
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[d3ad3271] | 127 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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| 128 |
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| 129 | <screen role="root"><userinput>make install &&
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[bb06362a] | 130 | ln -sf ../init.d/autofs /etc/rc.d/rcsysinit.d/S52autofs</userinput></screen>
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[d3ad3271] | 131 |
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| 132 | </sect2>
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| 133 |
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| 134 | <sect2 role="commands">
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| 135 | <title>Command Explanations</title>
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| 136 |
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[d4bf650a] | 137 | <para><command>for f in `cat ../patch_order-&autofs-version;`; do
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[410e228b] | 138 | patch -Np1 -i ../$f; done</command>: This command applies all the
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[65bea2a5] | 139 | patches downloaded earlier in the correct order.</para>
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[765a494] | 140 |
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[410e228b] | 141 | <para><command>ln -sf ../init.d/autofs
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| 142 | /etc/rc.d/rcsysinit.d/S52autofs</command>: This command sets the
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[d4bf650a] | 143 | link to properly start autofs upon boot.</para>
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[d260aaf4] | 144 |
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[d3ad3271] | 145 | </sect2>
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[d260aaf4] | 146 |
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[d3ad3271] | 147 | <sect2 role="configuration">
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| 148 | <title>Configuring Autofs</title>
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[7ef22cff] | 149 |
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[d3ad3271] | 150 | <sect3 id="autofs-config">
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| 151 | <title>Config Files</title>
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[7ef22cff] | 152 |
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[d3ad3271] | 153 | <para><filename>/etc/sysconfig/autofs.conf</filename>,
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| 154 | <filename>/etc/auto.master</filename>,
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| 155 | <filename>/etc/auto.misc</filename>, and
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| 156 | <filename>/etc/auto.net</filename></para>
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[7ef22cff] | 157 |
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[d3ad3271] | 158 | <indexterm zone="autofs autofs-config" >
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| 159 | <primary sortas="e-etc-sysconfig-autofs.conf">/etc/sysconfig/autofs.conf</primary>
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| 160 | </indexterm>
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[7ef22cff] | 161 |
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[d3ad3271] | 162 | <indexterm zone="autofs autofs-config">
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| 163 | <primary sortas="e-etc-auto.master">/etc/auto.master</primary>
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| 164 | </indexterm>
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[7ef22cff] | 165 |
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[d3ad3271] | 166 | <indexterm zone="autofs autofs-config">
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| 167 | <primary sortas="e-etc-auto.misc">/etc/auto.misc</primary>
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| 168 | </indexterm>
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[7ef22cff] | 169 |
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[d3ad3271] | 170 | <indexterm zone="autofs autofs-config">
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| 171 | <primary sortas="e-etc-auto.net">/etc/auto.net</primary>
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| 172 | </indexterm>
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[7ef22cff] | 173 |
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[d3ad3271] | 174 | </sect3>
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[7ef22cff] | 175 |
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[d3ad3271] | 176 | <sect3>
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| 177 | <title>Configuration Information</title>
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[7ef22cff] | 178 |
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[d3ad3271] | 179 | <para>The installation process creates <filename>auto.master</filename>,
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[d4bf650a] | 180 | <filename>auto.misc</filename>, <filename>auto.smb</filename>, and
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[32d0e29] | 181 | <filename>auto.net</filename>. Replace the
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| 182 | <filename>auto.master</filename> file with the following commands:</para>
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[d3ad3271] | 183 |
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| 184 | <screen role="root"><userinput>mv /etc/auto.master /etc/auto.master.bak &&
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| 185 | cat > /etc/auto.master << "EOF"
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| 186 | <literal># Begin /etc/auto.master
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[7ef22cff] | 187 |
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[9415459] | 188 | /media/auto /etc/auto.misc --ghost
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| 189 | #/home /etc/auto.home
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[7ef22cff] | 190 |
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[d3ad3271] | 191 | # End /etc/auto.master</literal>
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| 192 | EOF</userinput></screen>
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| 193 |
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[9415459] | 194 | <para>This file creates a new media directory, <filename>/media/auto</filename>
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| 195 | that will overlay any existing directory of the same name. In this example,
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| 196 | the file, <filename>/etc/auto.misc</filename>, has a line:</para>
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| 197 |
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| 198 | <screen>cd -fstype=iso9660,ro,nosuid,nodev :/dev/cdrom</screen>
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| 199 |
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| 200 | <para>that will mount a cdrom as <filename>/media/auto/cd</filename> if
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| 201 | that directory is accessed. The <option>--ghost</option> option tells
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[32d0e29] | 202 | the automounter to create <quote>ghost</quote> versions (i.e. empty
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| 203 | directories) of all the mount points listed in the configuration file
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| 204 | regardless whether any of the file systems are actually mounted or not.
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| 205 | This is very convenient and highly recommended, because it will show you
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| 206 | the available auto-mountable file systems as existing directories, even
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| 207 | when their file systems aren't currently mounted. Without the
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| 208 | <option>--ghost</option> option, you'll have to remember the names of the
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| 209 | directories. As soon as you try to access one of them, the directory will
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| 210 | be created and the file system will be mounted. When the file system gets
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| 211 | unmounted again, the directory is destroyed too, unless the
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| 212 | <option>--ghost</option> option was given.</para>
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[9415459] | 213 |
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[d3ad3271] | 214 | <note>
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[9415459] | 215 | <para>An alternative method would be to specify another automount
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[32d0e29] | 216 | location such as <filename
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| 217 | class='directory'>/var/lib/auto/cdrom</filename> and create a
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| 218 | symbolic link from <filename class='directory'>/media/cdrom</filename>
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| 219 | to the automount location.</para>
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[d612b9f] | 220 | </note>
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[d3ad3271] | 221 |
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[9415459] | 222 | <para>The <filename>auto.misc</filename> file must be configured to your
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[d3ad3271] | 223 | working hardware. The loaded configuration file should load your cdrom
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| 224 | if <filename>/dev/cdrom</filename> is active or it can be edited to
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[9415459] | 225 | match your device setup. Examples for floppies are available in the file
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[d3ad3271] | 226 | and easily activated. Documentation for this file is available using the
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| 227 | <command>man 5 autofs</command> command.</para>
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| 228 |
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[9415459] | 229 | <para>In the second line, if enabled, a user's home directory would be
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| 230 | mounted via NFS upon login. The <filename>/etc/home.auto</filename>
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| 231 | would need to exist and have an entry similar to:</para>
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| 232 |
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| 233 | <screen>joe example.org:/export/home/joe</screen>
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| 234 |
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| 235 | <para>where the directory <filename>/export/home/joe</filename> is
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| 236 | exported via NFS from the system example.org. NFS shares
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| 237 | are covered on the next page.</para>
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| 238 |
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[32d0e29] | 239 | <para>This package could also be used to mount SMB shares, however that
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| 240 | feature is not configured in these instructions. For additional
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| 241 | configuration information, see the man pages for auto.master(5). There
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[9415459] | 242 | are also web resources such as this <ulink
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[410e228b] | 243 | url='http://gentoo-wiki.com/HOWTO_Auto_mount_filesystems_(AUTOFS)#Config_files'>AUTOFS
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[32d0e29] | 244 | HOWTO</ulink> available.</para>
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[9415459] | 245 |
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[d3ad3271] | 246 | </sect3>
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[32d0e29] | 247 |
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[d4bf650a] | 248 | <!--
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[d3ad3271] | 249 | <sect3 id="autofs-init">
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| 250 | <title>Boot Script</title>
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| 251 |
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| 252 |
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[e0d33ef] | 253 | <para>Install the <filename>/etc/rc.d/init.d/autofs</filename> mount script
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| 254 | and <filename>/etc/sysconfig/autofs.conf</filename> support file included
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[5254d12] | 255 | with the <xref linkend="bootscripts"/> package.</para>
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[d3ad3271] | 256 |
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| 257 | <indexterm zone="autofs autofs-init">
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| 258 | <primary sortas="f-autofs-init">autofs</primary>
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| 259 | </indexterm>
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| 260 |
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| 261 | <screen role="root"><userinput>make install-autofs</userinput></screen>
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| 262 |
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| 263 | <para>The time-out variable is set in
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| 264 | <filename>/etc/sysconfig/autofs.conf</filename>. The installed file sets
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| 265 | a default of 60 seconds of inactivity before unmounting the device. A
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[e0d33ef] | 266 | much shorter time may be necessary to protect buffer writing to a floppy
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[d3ad3271] | 267 | if users tend to remove the media prior to the timeout setting.</para>
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| 268 |
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| 269 | </sect3>
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[d4bf650a] | 270 | -->
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[32d0e29] | 271 |
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[d3ad3271] | 272 | </sect2>
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| 273 |
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| 274 | <sect2 role="content">
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| 275 | <title>Contents</title>
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| 276 |
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| 277 | <segmentedlist>
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| 278 | <segtitle>Installed Program</segtitle>
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| 279 | <segtitle>Installed Libraries</segtitle>
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| 280 | <segtitle>Installed Directories</segtitle>
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| 281 |
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| 282 | <seglistitem>
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| 283 | <seg>automount</seg>
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[d4bf650a] | 284 | <seg>lookup_file.so, lookup_hosts.so, lookup_multi.so,
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| 285 | lookup_nisplus.so, lookup_program.so, lookup_userhome.so,
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| 286 | lookup_yp.so, mount_afs.so, mount_autofs.so, mount_bind.so,
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[410e228b] | 287 | mount_changer.so, mount_ext2.so, mount_generic.so,
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[d4bf650a] | 288 | mount_nfs.so, parse_sun.so</seg>
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[460c6edb] | 289 | <seg>/lib/autofs and /var/run/autofs</seg>
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[d3ad3271] | 290 | </seglistitem>
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| 291 | </segmentedlist>
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| 292 |
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| 293 | <variablelist>
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| 294 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 295 | <?dbfo list-presentation="list"?>
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| 296 | <?dbhtml list-presentation="table"?>
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| 297 |
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| 298 | <varlistentry id="automount">
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| 299 | <term><command>automount</command></term>
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| 300 | <listitem>
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[e0d33ef] | 301 | <para>is the daemon that performs the mounting when a request is
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[d3ad3271] | 302 | made for the device.</para>
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| 303 | <indexterm zone="autofs automount">
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| 304 | <primary sortas="b-automount">automount</primary>
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| 305 | </indexterm>
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| 306 | </listitem>
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| 307 | </varlistentry>
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| 308 |
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| 309 | </variablelist>
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| 310 |
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| 311 | </sect2>
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[7ef22cff] | 312 |
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| 313 | </sect1>
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