mirror of
https://github.com/Zeckmathederg/glfs.git
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75da594d10
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@5514 af4574ff-66df-0310-9fd7-8a98e5e911e0
641 lines
25 KiB
XML
641 lines
25 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY hal-download-http "http://freedesktop.org/~david/dist/hal-&hal-version;.tar.gz">
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<!ENTITY hal-download-ftp "ftp://ftp.fu-berlin.de/unix/linux/mirrors/gentoo/distfiles/hal-&hal-version;.tar.gz">
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<!ENTITY hal-md5sum "2f84ddbc22bc35baa9388e7794d1fa31">
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<!ENTITY hal-size "1.4 MB">
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<!ENTITY hal-buildsize "18.0 MB">
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<!ENTITY hal-time "0.5 SBU">
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]>
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<sect1 id="hal" xreflabel="HAL-&hal-version;">
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<?dbhtml filename="hal.html"?>
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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<keywordset>
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<keyword role="package">hal-&hal-version;.tar</keyword>
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<keyword role="ftpdir">hal</keyword>
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</keywordset>
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</sect1info>
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<title>HAL-&hal-version;</title>
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<indexterm zone="hal">
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<primary sortas="a-HAL">HAL</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to HAL</title>
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<para><application>HAL</application> is a hardware abstraction layer, which
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is a piece of software that provides a view of the various hardware
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attached to a system. In addition to this, <application>HAL</application>
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keeps detailed metadata for each piece of hardware and provides hooks such
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that system and desktop-level software can react to changes in the hardware
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configuration in order to maintain system policy.</para>
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<para>The most important goal of <application>HAL</application> is to
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provide plug-and-play facilities for UNIX-like desktops with focus on
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providing a rich and extensible description of device characteristics and
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features. One example of the functionality provided by
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<application>HAL</application> is when you plug in a USB storage device.
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<application>HAL</application> can automatically create an appropriate
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entry in the <filename>/etc/fstab</filename> file and create the
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corresponding mount point in
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<filename class="directory">/media</filename>.</para>
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Download (HTTP): <ulink url="&hal-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&hal-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum: &hal-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &hal-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &hal-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &hal-time;</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">Additional Downloads</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Recommended USB ID list:
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<ulink url="http://www.linux-usb.org/usb.ids"/></para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">HAL Dependencies</bridgehead>
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<bridgehead renderas="sect4">Required</bridgehead>
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<para role="required"><xref linkend="glib2"/>,
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<xref linkend="dbus"/> (see the <xref linkend="hal-requirements"/>),
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<xref linkend="python"/>,
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<xref linkend="popt"/>, and
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<xref linkend="perl-xml-parser"/></para>
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<bridgehead renderas="sect4">Recommended</bridgehead>
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<para role="recommended"><xref linkend="pciutils"/> (with a current
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<filename>pci.ids</filename> file)</para>
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<bridgehead renderas="sect4">Optional</bridgehead>
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<para role="optional"><xref linkend="pkgconfig"/>,
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<xref linkend="intltool"/>,
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<xref linkend="libusb"/>,
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<xref linkend="doxygen"/>, and
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<xref linkend="docbook-utils"/></para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of HAL</title>
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<para>If you downloaded the USB ID list, install it by issuing the
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following command as the <systemitem class="username">root</systemitem>
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user:</para>
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<screen role="root"><userinput>install -v -m644 ../usb.ids /usr/share</userinput></screen>
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<para>You must create a dedicated user and group before installing the
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package. Though the default BLFS instructions run the
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<application>HAL</application> daemon as the
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<systemitem class="username">root</systemitem> user, a configuration file
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is installed which has the dedicated user's name hard-coded in it. This
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causes a confusing message to be generated when starting the
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<application>D-BUS</application> daemon. Issue the following commands as
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the <systemitem class="username">root</systemitem> user:</para>
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<screen role="root"><userinput>groupadd -g 19 haldaemon &&
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useradd -c "HAL Daemon User" -d /dev/null -u 19 \
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-g haldaemon -s /bin/false haldaemon</userinput></screen>
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<para>Install <application>HAL</application> by running the following
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commands:</para>
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<screen><userinput>sed -i -e "s/managed</comment=&/" \
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-e "s/pamconsole/users/" \
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fdi/policy/10osvendor/10-storage-policy.fdi &&
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./configure --prefix=/usr \
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--sysconfdir=/etc \
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--libexecdir=/usr/lib/hal \
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--localstatedir=/var \
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--enable-fstab-sync \
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--enable-pcmcia-support &&
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make</userinput></screen>
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<para>This package does not come with a test suite.</para>
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<para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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<screen role="root"><userinput>make install &&
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install -v -m755 -d /var/run/hald</userinput></screen>
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</sect2>
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<sect2 role="commands">
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<title>Command Explanations</title>
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<para><command>sed -i -e ...</command>: This command adjusts the policy for
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storage devices so that the <filename>/etc/fstab</filename> file is updated
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to standards used by LFS systems.</para>
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<para><parameter>--libexecdir=/usr/lib/hal</parameter>: This parameter
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forces the installation of libexec files to
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<filename class='directory'>/usr/lib/hal</filename> instead of
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<filename class='directory'>/usr/libexec</filename>.</para>
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<para><parameter>--localstatedir=/var</parameter>: This parameter forces
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the creation of the <filename>pid</filename> file to
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<filename class='directory'>/var/run/hald</filename> instead of
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<filename class='directory'>/usr/var/run/hald</filename>.</para>
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<para><parameter>--enable-fstab-sync</parameter>: This parameter will
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ensure the <command>fstab-sync</command> program is built.</para>
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<para><parameter>--enable-pcmcia-support</parameter>: This parameter
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provides extended PCMCIA support.</para>
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</sect2>
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<sect2 id="hal-runtime-dependencies" xreflabel="GNOME-Python">
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<title>Run-Time Dependencies</title>
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<para>The <xref linkend="hal-device-manager"/> program requires several
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additional packages to be installed before it will run. The list is
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significant and requires a substantial commitment to install them. It is
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left up to you to determine if the time and effort spent installing the
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following packages is worth using the <command>hal-device-manager</command>
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program.</para>
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<para>Though the only requirement to run the
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<command>hal-device-manager</command> program is installing
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<ulink url="http://ftp.gnome.org/pub/GNOME/sources/gnome-python/">
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GNOME-Python</ulink>, the dependency list is staggering. The following
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list does not include the dependencies already identified in the BLFS
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book. For example, <application>libgnome</application> already lists
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<application>GNOME VFS</application>, <application>GConf</application>,
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etc., so they are not repeated here. Note that some of the dependencies
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have their own dependencies, which have their own, and so forth and so
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on.</para>
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<itemizedlist>
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<listitem>
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<para><ulink
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url="http://ftp.gnome.org/pub/GNOME/sources/gnome-python/">GNOME-Python</ulink>
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</para>
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<itemizedlist>
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<listitem>
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<para><ulink
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url="http://www.pygtk.org/">PyGTK</ulink> (required)
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</para>
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<itemizedlist>
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<listitem>
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<para><ulink
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url="http://www.cairographics.org/pycairo">Pycairo</ulink> (optional)
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</para>
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<itemizedlist>
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<listitem>
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<para><ulink
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url="http://www.cairographics.org/snapshots/">libsvg-cairo</ulink> (optional)
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</para>
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<itemizedlist>
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<listitem>
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<para><ulink
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url="http://www.cairographics.org/snapshots/">libsvg</ulink> (required)
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</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para><ulink
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url="http://www.pygtk.org/">PyGTK</ulink> (optional, and circular)
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</para>
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</listitem>
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<listitem>
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<para><ulink
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url="http://sourceforge.net/projects/numpy">Numerical Python</ulink> (optional)
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</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para><ulink
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url="http://sourceforge.net/projects/numpy">Numerical Python</ulink> (optional)
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</para>
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</listitem>
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<listitem>
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<para><xref linkend="libglade"/> (required)</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para><xref linkend="libgnomeui"/> (optional)</para>
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</listitem>
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<listitem>
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<para><xref linkend="libgnome"/> (required)</para>
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</listitem>
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<listitem>
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<para><ulink
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url="http://ftp.gnome.org/pub/GNOME/sources/pyorbit/2.0/">PyORBit</ulink> (optional)
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</para>
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<itemizedlist>
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<listitem>
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<para><xref linkend="ORBit2"/> (required)</para>
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</listitem>
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</itemizedlist>
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</listitem>
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</itemizedlist>
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</listitem>
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</itemizedlist>
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<note>
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<para>The dependency list is designed to start at the bottom and work
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your way up until the last package to install is
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<application>GNOME-Python</application>. Note that the dependencies
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marked as <quote>required</quote> are required for the package it is
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listed under. For example, you don't need to install
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<application>ORBit</application> if you don't plan on installing
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<application>PyORBit</application>. The minimum packages you could
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install to support running <xref linkend="hal-device-manager"/> would be
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(in this order): <xref linkend="libgnome"/>, <xref linkend="libglade"/>,
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<ulink url="http://www.pygtk.org/">PyGTK</ulink> and <ulink
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url="http://ftp.gnome.org/pub/GNOME/sources/gnome-python/">
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GNOME-Python</ulink>.</para>
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</note>
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</sect2>
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<sect2 role="configuration">
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<title>Configuring HAL</title>
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<sect3 id="hal-config">
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<title>Config Files</title>
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<para><filename>/etc/dbus-1/system.d/hal.conf</filename> and
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<filename>/etc/hal/*</filename></para>
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<indexterm zone="hal hal-config">
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<primary sortas="e-etc-dbus-1-system.d-hal.conf">/etc/dbus-1/system.d/hal.conf</primary>
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</indexterm>
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<indexterm zone="hal hal-config">
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<primary sortas="e-etc-hal-star">/etc/hal/*</primary>
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</indexterm>
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</sect3>
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<sect3><title>Configuration Information</title>
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<para>No configuration is necessary for the majority of installations
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on systems configured with ISO-8859-1 compatible locales. The defaults
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should work just fine. For some installations, tweaking of the various
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policies may be required. One such configuration change necessary in some
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locales is identifying the <option>iocharset</option> and
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<option>codepage</option> variables in the
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<filename>/etc/fstab</filename> entries created by the
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<command>fstab-sync</command> program. If changes are required to the
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configuration so that your locale is properly identified in the entries
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created in <filename>/etc/fstab</filename>, issue the following commands
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as the <systemitem class="username">root</systemitem> user (you must
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substitute the proper data for the <replaceable>[iocharset]</replaceable>
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and <replaceable>[codepage]</replaceable> info):</para>
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<screen role="root"><userinput>install -v -m755 -d /etc/hal/fdi/policy/30user &&
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cat > /etc/hal/fdi/policy/30user/30user-policy.fdi << "EOF"
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<literal><?xml version="1.0" encoding="UTF-8"?> <!-- -*- SGML -*- -->
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<!--
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This file is used to set custom options to the HAL policy settings.
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The default policy settings are defined in files contained in the
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/usr/share/hal/fdi/policy directories. User defined customizations
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should be in files contained in the /etc/hal/fdi/policy directories.
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-->
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<deviceinfo version="0.2">
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<device>
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<match key="info.udi"
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string="/org/freedesktop/Hal/devices/computer">
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<!-- Set the iocharset variable in the /etc/fstab file entry -->
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<merge
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key="storage.policy.default.mount_option.iocharset=<replaceable>[iocharset]</replaceable>"
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type="bool">true</merge>
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<!-- Set the codepage variable in the /etc/fstab file entry -->
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<merge
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key="storage.policy.default.mount_option.codepage=<replaceable>[codepage]</replaceable>"
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type="bool">true</merge>
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</match>
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</device>
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</deviceinfo></literal>
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EOF</userinput></screen>
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<note>
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<para>The previous commands created a file named
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<filename>/etc/hal/fdi/policy/30user/30user-policy.fdi</filename>. To
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ease readability of the file, put everything between the
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<angle brackets> and <merge></merge> tags on one
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line. You must have at least one space character
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where the ends of the lines were. The file would then look like this
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(trimmed at the top and bottom for brevity):</para>
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<screen><literal> <device>
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<match key="<replaceable>[text]</replaceable>" string="<replaceable>[text]</replaceable>">
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<!-- Set the iocharset variable in the /etc/fstab file entry -->
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<merge key="<replaceable>[iocharset text]</replaceable>" type="bool">true</merge>
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<!-- Set the codepage variable in the /etc/fstab file entry -->
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<merge key="<replaceable>[codepage text]</replaceable>" type="bool">true</merge>
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</match>
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</device></literal></screen>
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</note>
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</sect3>
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<sect3 id="hal-init">
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<title>Boot Script</title>
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<para>To automatically start the <command>hald</command> daemon
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when the system is rebooted, install the
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<filename>/etc/rc.d/init.d/haldaemon</filename>
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bootscript from the
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<xref linkend="bootscripts"/> package.</para>
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<indexterm zone="hal hal-init">
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<primary sortas="f-haldaemon">haldaemon</primary>
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</indexterm>
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<important>
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<para>If the system-wide <application>D-BUS</application> daemon was
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running during the installation of <application>HAL</application>,
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ensure you stop and restart the <application>D-BUS</application>
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daemon before attempting to start the <command>hald</command>
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daemon.</para>
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</important>
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<screen role="root"><userinput>make install-haldaemon</userinput></screen>
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</sect3>
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</sect2>
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<sect2 role="content">
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<title>Contents</title>
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<segmentedlist>
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<segtitle>Installed Programs</segtitle>
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<segtitle>Installed Libraries</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>fstab-sync, hal.hotplug, hal-device, hal-device-manager,
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hal-find-by-capability, hal-find-by-property, hal-get-property,
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hal-luks-remove, hal-luks-setup, hal-set-property,
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hal-system-power-hibernate, hal-system-power-set-power-save,
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hal-system-power-suspend, hald, hald-addon-acpi, hald-addon-hid-ups,
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hald-addon-pmu, hald-addon-storage, hald-addon-usb-csr,
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hald-probe-hiddev, hald-probe-input, hald-probe-pc-floppy,
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hald-probe-printer, hald-probe-smbios, hald-probe-storage,
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hald-probe-volume and lshal</seg>
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<seg>libhal.[so,a] and libhal-storage,[so,a]</seg>
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<seg>/etc/hal, /usr/include/hal, /usr/lib/hal,
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/usr/share/doc/hal-&hal-version;, /usr/share/hal
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and /var/run/hald</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<?dbhtml list-presentation="table"?>
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<varlistentry id="fstab-sync">
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<term><command>fstab-sync</command></term>
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<listitem>
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<para>updates the file systems table file
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<filename class='directory'>/etc/fstab</filename> and creates/removes
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mount points in <filename class='directory'>/media</filename> in
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response to <application>HAL</application> events. This program is
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usually never run directly from a shell; instead it is invoked as a
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callout by the <application>HAL</application> daemon.</para>
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<indexterm zone="hal fstab-sync">
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<primary sortas="b-fstab-sync">fstab-sync</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="hal-device">
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<term><command>hal-device</command></term>
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<listitem>
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<para>is used to create, remove or show a
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<application>HAL</application> device.</para>
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<indexterm zone="hal hal-device">
|
|
<primary sortas="b-hal-device">hal-device</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-device-manager">
|
|
<term><command>hal-device-manager</command></term>
|
|
<listitem>
|
|
<para>shows a graphical respresentation of all the devices
|
|
<application>HAL</application> is aware of. This program requires
|
|
<xref linkend="hal-runtime-dependencies"/>. Here is a <ulink
|
|
url="http://cvs.freedesktop.org/*checkout*/hal/hal/doc/spec/hal-devices1.png">
|
|
screenshot</ulink> of <command>hal-device-manager</command>
|
|
communicating with the HAL daemon and displaying a tree of device
|
|
objects. The shown properties in the screenshot are for a device
|
|
object representing a hard disk.</para>
|
|
<indexterm zone="hal hal-device-manager">
|
|
<primary sortas="b-hal-device-manager">hal-device-manager</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-find-by-capability">
|
|
<term><command>hal-find-by-capability</command></term>
|
|
<listitem>
|
|
<para>prints the Unique Device Identifiers for
|
|
<application>HAL</application> device objects of a given
|
|
capability.</para>
|
|
<indexterm zone="hal hal-find-by-capability">
|
|
<primary sortas="b-hal-find-by-cpability">hal-find-by-capability</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-find-by-property">
|
|
<term><command>hal-find-by-property</command></term>
|
|
<listitem>
|
|
<para>prints the Unique Device Identifiers for
|
|
<application>HAL</application> device objects where a given property
|
|
assumes a given value.</para>
|
|
<indexterm zone="hal hal-find-by-property">
|
|
<primary sortas="b-hal-find-by-property">hal-find-by-property</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-get-property">
|
|
<term><command>hal-get-property</command></term>
|
|
<listitem>
|
|
<para>retrieves a property from a device.</para>
|
|
<indexterm zone="hal hal-get-property">
|
|
<primary sortas="b-hal-get-property">hal-get-property</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-luks-remove">
|
|
<term><command>hal-luks-remove</command></term>
|
|
<listitem>
|
|
<para>is a <application>HAL</application> method wrapper for
|
|
<command>cryptsetup</command> remove. This program requires <ulink
|
|
url="http://luks.endorphin.org/dm-crypt">LUKS</ulink>.</para>
|
|
<indexterm zone="hal hal-luks-remove">
|
|
<primary sortas="b-hal-luks-remove">hal-luks-remove</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-luks-setup">
|
|
<term><command>hal-luks-setup</command></term>
|
|
<listitem>
|
|
<para>is a <application>HAL</application> method wrapper for
|
|
<command>luks-setup</command>. This program requires <ulink
|
|
url="http://luks.endorphin.org/dm-crypt">LUKS</ulink>.</para>
|
|
<indexterm zone="hal hal-luks-setup">
|
|
<primary sortas="b-hal-luks-setup">hal-luks-setup</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-set-property">
|
|
<term><command>hal-set-property</command></term>
|
|
<listitem>
|
|
<para>attempts to set property for a device. Note that, due to
|
|
security considerations, it may not be possible to set a
|
|
property.</para>
|
|
<indexterm zone="hal hal-set-property">
|
|
<primary sortas="b-hal-set-property">hal-set-property</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-system-power-hibernate">
|
|
<term><command>hal-system-power-hibernate</command></term>
|
|
<listitem>
|
|
<para>is a <application>HAL</application> wrapper script for
|
|
system power saving features. This program is currently not supported
|
|
on LFS platforms.</para>
|
|
<indexterm zone="hal hal-system-power-hibernate">
|
|
<primary sortas="b-hal-system-power-hibernate">hal-system-power-hibernate</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-system-power-set-power-save">
|
|
<term><command>hal-system-power-set-power-save</command></term>
|
|
<listitem>
|
|
<para>is a <application>HAL</application> wrapper script for
|
|
system power saving features. This program is currently not supported
|
|
on LFS platforms.</para>
|
|
<indexterm zone="hal hal-system-power-set-power-save">
|
|
<primary sortas="b-hal-system-power-set-power-save">hal-system-power-set-power-save</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hal-system-power-suspend">
|
|
<term><command>hal-system-power-suspend</command></term>
|
|
<listitem>
|
|
<para>is a <application>HAL</application> wrapper script for
|
|
system power saving features. This program is currently not supported
|
|
on LFS platforms.</para>
|
|
<indexterm zone="hal hal-system-power-suspend">
|
|
<primary sortas="b-hal-system-power-suspend">hal-system-power-suspend</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hald">
|
|
<term><command>hald</command></term>
|
|
<listitem>
|
|
<para>is the <application>HAL</application> daemon program.</para>
|
|
<indexterm zone="hal hald">
|
|
<primary sortas="b-hald">hald</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="lshal">
|
|
<term><command>lshal</command></term>
|
|
<listitem>
|
|
<para>shows all devices and their properties. If the --monitor option
|
|
is given then the device list and all devices are monitored for
|
|
changes.</para>
|
|
<indexterm zone="hal lshal">
|
|
<primary sortas="b-lshal">lshal</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libhal">
|
|
<term><filename class='libraryfile'>libhal.[so,a]</filename></term>
|
|
<listitem>
|
|
<para>contains the API functions required by the
|
|
<application>HAL</application> programs.</para>
|
|
<indexterm zone="hal libhal">
|
|
<primary sortas="c-libhal">libhal.[so,a]</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libhal-storage">
|
|
<term><filename class='libraryfile'>libhal-storage.[so,a]</filename></term>
|
|
<listitem>
|
|
<para>contains the API functions required by the
|
|
<application>HAL</application> storage and volume utility
|
|
programs.</para>
|
|
<indexterm zone="hal libhal-storage">
|
|
<primary sortas="c-libhal-storage">libhal-storage.[so,a]</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
|
|
</sect2>
|
|
|
|
</sect1>
|