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authorJames Meyer <james.meyer@operamail.com>2010-10-23 18:17:40 (GMT)
committerJames Meyer <james.meyer@operamail.com>2010-10-23 18:19:39 (GMT)
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treef4283c850ac0ac202c17e78a637ee7ca8147621b /abs/core-testing/local-website/htdocs/mythtv-doc/mythtv-HOWTO-5.html
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-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
-<HTML>
-<HEAD>
- <META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.21">
- <TITLE>Installing and using MythTV: Downloading and compiling. </TITLE>
- <LINK HREF="mythtv-HOWTO-6.html" REL=next>
- <LINK HREF="mythtv-HOWTO-4.html" REL=previous>
- <LINK HREF="mythtv-HOWTO.html#toc5" REL=contents>
-</HEAD>
-<BODY>
-<A HREF="mythtv-HOWTO-6.html">Next</A>
-<A HREF="mythtv-HOWTO-4.html">Previous</A>
-<A HREF="mythtv-HOWTO.html#toc5">Contents</A>
-<HR>
-<H2><A NAME="DownloadAndCompile"></A> <A NAME="s5">5.</A> <A HREF="mythtv-HOWTO.html#toc5">Downloading and compiling. </A></H2>
-
-<P>Get MythTV from the
-<A HREF="http://www.mythtv.org">http://www.mythtv.org</A> web site. There are two installation methods
-you may choose from. The first is to download the latest release in tarball
-format and compile. The tarball release of MythTV should work on a wide
-variety of systems and should be the preferred method for new users. If you
-wish to use the <B>subversion</B> copy of MythTV you may obtain it from
-<A HREF="http://svn.mythtv.org">http://svn.mythtv.org</A></P>
-<P>
-<FIGURE>
-<EPS FILE="stop.eps">
-<IMG SRC="stop.png">
-<CAPTION><B>NOTE</B>: If you are going to use <B>subversion</B> to
-compile MythTV rather than using the distribution tarball, you <EM>must</EM>
-join the
-<A HREF="http://www.mythtv.org/mailman/listinfo/mythtv-commits/">http://www.mythtv.org/mailman/listinfo/mythtv-commits/</A> and
-<A HREF="http://www.mythtv.org/mailman/listinfo/mythtv-dev/">http://www.mythtv.org/mailman/listinfo/mythtv-dev/</A> mailing lists to
-keep up to date with the current status of the code. Code obtained from
-subversion has no guarantees regarding stability, etc.</CAPTION>
-</FIGURE>
-</P>
-<P>If you are in North America you will use the Schedules Direct grabber which is
-built-in to MythTV. You <EM>do not</EM> need to install XMLTV (so you may
-skip XMLTV-related instructions), but you need <B>wget</B> version 1.9.1
-or higher.</P>
-<P>Get XMLTV from
-<A HREF="http://xmltv.sourceforge.net">http://xmltv.sourceforge.net</A>. Download the latest version (0.5.51).</P>
-<P>
-<HR>
-<PRE>
-NOTE for Mandriva users: If you have added a "PLF" mirror, you may skip the
-next step and type:
-
-# urpmi libmp3lame0 libmp3lame0-devel
-
-After downloading, be sure to install both:
-# rpm -Uvh lame*
-</PRE>
-<HR>
-</P>
-<P>Get lame from
-<A HREF="http://lame.sourceforge.net/">http://lame.sourceforge.net/</A>. Download the source code to v3.96.1
-by following the links from "Using" through "Download...".</P>
-
-<H2><A NAME="ss5.1">5.1</A> <A HREF="mythtv-HOWTO.html#toc5.1">Building LAME</A>
-</H2>
-
-<P>Open a shell and switch to the directory where you saved lame.
-<BLOCKQUOTE><CODE>
-<PRE>
-$ tar -xzf lame-3.96.1.tar.gz
-$ cd lame-3.96.1
-$ ./configure
-$ make
-$ make test
-$ su
-# make install
-</PRE>
-</CODE></BLOCKQUOTE>
-
-Check that it worked:
-<BLOCKQUOTE><CODE>
-<PRE>
-# ls -l /usr/local/lib
--rw-r--r-- 1 root root 381706 Nov 4 14:22 libmp3lame.a
--rwxr-xr-x 1 root root 674 Nov 4 14:22 libmp3lame.la*
-lrwxrwxrwx 1 root root 19 Nov 4 14:22 libmp3lame.so ->
-libmp3lame.so.0.0.0*
-lrwxrwxrwx 1 root root 19 Nov 4 14:22 libmp3lame.so.0 ->
-libmp3lame.so.0.0.0*
--rwxr-xr-x 1 root root 360197 Nov 4 14:22
-libmp3lame.so.0.0.0*
-
-# exit
-$
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-
-<H2><A NAME="ss5.2">5.2</A> <A HREF="mythtv-HOWTO.html#toc5.2">XMLTV</A>
-</H2>
-
-<H3>Red Hat Linux and Fedora Core:</H3>
-
-<P>RPMs for <B>XMLTV</B> and all of its dependencies can be obtained from
-<A HREF="http://ATrpms.net/name/xmltv/">http://ATrpms.net/name/xmltv/</A>. The web page has a
-list of all the dependent packages you must download and install.
-<BLOCKQUOTE><CODE>
-<PRE>
-# rpm -Uvh xmltv* perl*
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P>If you install from this location you may skip to
-<A HREF="#manually_building_mythtv">Manually building MythTV</A>.</P>
-<H3>Mandriva</H3>
-
-<P>RPMs for <B>XMLTV</B> and all of its dependencies are located in
-Mandriva's "contrib". If you have added a contrib mirror, try installing
-<B>XMLTV</B>:
-<BLOCKQUOTE><CODE>
-<PRE>
-# urpmi xmltv xmltv-grabbers
-</PRE>
-</CODE></BLOCKQUOTE>
-
-If this does not work, it is possible that contrib for your Mandriva version
-does not have <B>XMLTV</B>, so you may install the XMLTV prerequisites by typing:
-<BLOCKQUOTE><CODE>
-<PRE>
-# urpmi perl-xml-twig perl-xml-writer perl-datemanip perl-libwww-perl
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P>and skip straight to the XMLTV compilation step.</P>
-
-<H3>Manual installation</H3>
-
-<P>
-<A NAME="untarring_xmltv"></A> Untar the xmltv file:
-<BLOCKQUOTE><CODE>
-<PRE>
-$ tar -xjf xmltv-0.5.51.tar.bz2
-</PRE>
-</CODE></BLOCKQUOTE>
-
-Install the xmltv prerequisites. The following prerequisites are the
-minimum required; when you actually start running the xmltv setup program it
-may alert you to other modules that are required.:</P>
-<P>
-<BLOCKQUOTE><CODE>
-<PRE>
-$ su
-# perl -MCPAN -e shell
-cpan> install XML::Twig
-cpan> install Date::Manip
-Date::Manip is up to date.
-cpan> install LWP
-cpan> install XML::Writer
-cpan> exit
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P>Change to the XMLTV directory and compile it:
-<BLOCKQUOTE><CODE>
-<PRE>
-$ cd xmltv-0.5.51
-$ perl Makefile.PL
-</PRE>
-</CODE></BLOCKQUOTE>
-
-You can answer "N" to the tv_check, tv_pick_cgi questions. Say "yes" to
-the grabber required for your location.</P>
-<P>You may get errors about modules not being installed. You will need to
-resolve any missing dependencies at this point, or your grabber may not work
-correctly.
-<BLOCKQUOTE><CODE>
-<PRE>
-$ make
-$ make test
-$ su
-# make install
-# exit
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-
-<H2><A NAME="ConfigureSD"></A> <A NAME="ss5.3">5.3</A> <A HREF="mythtv-HOWTO.html#toc5.3">Configuring the Schedules Direct service </A>
-</H2>
-
-<P>As of 2007-09-01, Tribune Media Services will no longer offer free guide
-data. Schedules Direct is a non-profit organization which has licensed the
-data to make it available to users of Freeware and Open Source applications.</P>
-<P>If you wish to use Schedules Direct, you'll need to establish a user
-account. Go to
-<A HREF="http://www.schedulesdirect.org">http://www.schedulesdirect.org</A> and click on the "Membership" link. </P>
-<P>Once you've read and agreed to the Subscriber Agreement, Terms of Use and
-Privacy Policy proceed to the lineup choices and configure your account for
-your particular location and the channels that you have. This configuration
-will be imported into MythTV when you first run the <B>mythtv-setup</B>
-program.</P>
-
-<P>
-<A NAME="manually_building_mythtv"></A> </P>
-<H2><A NAME="ss5.4">5.4</A> <A HREF="mythtv-HOWTO.html#toc5.4">Manually building MythTV</A>
-</H2>
-
-<P>If you are going to use <B>subversion</B>, execute the following
-instructions to obtain the latest version of MythTV:</P>
-<P>
-<BLOCKQUOTE><CODE>
-<PRE>
-$ mkdir mythtv
-$ svn co http://svn.mythtv.org/svn/trunk/ mythtv
-$ cd mythtv
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P>To use a release version, you can execute:
-<BLOCKQUOTE><CODE>
-<PRE>
-$ mkdir mythtv-release-0.21
-$ svn co http://svn.mythtv.org/svn/branches/release-0-21-fixes/ mythtv-release-0.21
-$ cd mythtv-release-0.21
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P><B>NOTE</B>: Using a svn version of the code allows you to stay
-up-to-date with changes. So, if there's an update to the 0.21 release and
-you originally obtained it using svn, you could enter the
-mythtv-release-0.21 directory and type "svn up", which will update your copy
-with the fixed version from the website. You would then recompile and
-install the updated 0.21 code.</P>
-<P>If you are using the tarball, then unpack it:
-<BLOCKQUOTE><CODE>
-<PRE>
-$ tar -xjf mythtv-0.21.tar.bz2
-$ cd mythtv-0.21
-$ ./configure
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P>If you wish to change options, run <B>./configure --help</B> to
-see what is available and to override and automatically detected options.
-See the <CODE>config.log</CODE> file after running <B>configure</B> to see
-previous runs.</P>
-<P>To compile:
-<BLOCKQUOTE><CODE>
-<PRE>
-$ make -j 2
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P>The MythTV compile can take advantage of multiple CPUs, SMP and
-Hyperthreading. If you want to build MythTV on a multi-CPU machine (or with
-<B>distcc</B>), specify "-j numjobs", where "numjobs" is greater than 2.
-In the above example, we had two concurrent jobs executing, which is
-recommended for a single CPU system. Do not set the number of jobs too
-high, or your compile will actually take longer to complete than it would if
-you did a "normal" build.</P>
-<P>If you are using <B>distcc</B>, and you had two other host machines (red, blue)
-participating, you would do something like:
-<BLOCKQUOTE><CODE>
-<PRE>
-$ export DISTCC_HOSTS='localhost red blue'
-$ make -j 6 CXX=distcc
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P>The actual speed-up, if any, is dependant on a number of factors, such as
-number of CPUs / hosts, etc. The <B>distcc</B> documentation recommends
-using a <CODE>-j</CODE> value of twice the number of CPUs available to keep all
-of them busy.</P>
-<P>Some timing information. The following should only be used for
-illustration; your actual results may vary. The test involves a complete
-<CODE>make distclean</CODE> to the final binary.
-<UL>
-<LI>P4 3.2Ghz HT: "standard" make: 12m 49s</LI>
-<LI>P4 3.2Ghz HT: make -j 2: 11m 24s </LI>
-</UL>
-</P>
-<P>In the above example, we see that with a single CPU, a multi-stage
-<B>make</B> does not significantly decrease compile time.</P>
-<P>Once the compile is done, switch to superuser:
-<BLOCKQUOTE><CODE>
-<PRE>
-$ su
-# make install
-# exit
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<P>
-<FIGURE>
-<EPS FILE="stop.eps">
-<IMG SRC="stop.png">
-<CAPTION><B>NOTE</B>: subsequent configuration steps assume that you are within
-the MythTV directory that you <CODE>cd</CODE>'d to above.</CAPTION>
-</FIGURE>
-</P>
-
-<H3>Enabling real-time scheduling of the display thread.</H3>
-
-<P>MythTV supports real-time scheduling of the video output thread. There
-are three ways to go about enabling this: You can use rlimits, you can use
-the realtime security module, or on older systems you can SUID the
-executable. Enabling real-time scheduling is optional, but can make the
-video display smoother, especially if you are decoding HDTV.</P>
-
-<H3>rlimits</H3>
-
-<P>The rlimits method is the preferred method and is included in Linux
-2.6.12 and above. Unfortunately, you need PAM version 0.79 or above, which
-may not be supported by your distribution yet. Assuming anyone running
-<B>mythfrontend</B> is in the audio group and rlimits are supported, all
-you need to do is place this in your <CODE>/etc/security/limits.conf</CODE></P>
-<P>
-<BLOCKQUOTE><CODE>
-<PRE>
-* - rtprio 0
-* - nice 0
-@audio - rtprio 50
-@audio - nice 0
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-
-<H3>realtime module</H3>
-
-<P>The second option is to use the Linux realtime kernel module.
-This is will be phased out over time, but is currently supported
-by many distributions that do not yet support rlimits. If you are
-not using the distribution kernel you must configure your kernel
-with:
-<BLOCKQUOTE><CODE>
-<PRE>
-Security options : [*] Enable different security models
-Security options : [M] Default Linux Capabilties
-</PRE>
-</CODE></BLOCKQUOTE>
-
-You may also need to install the realtime module, using your distribution's
-realtime package. Assuming the users who will be running
-<B>mythfrontend</B> will be in the audio group you can get the GUID of a named
-group like so:
-<BLOCKQUOTE><CODE>
-<PRE>
-$ grep audio /etc/group
-</PRE>
-</CODE></BLOCKQUOTE>
-
-If the number printed out from the grep was 18, you can now load
-this module as root before starting <B>mythfrontend</B>:
-<BLOCKQUOTE><CODE>
-<PRE>
-# modprobe realtime gid=18
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-
-<H3>run as root option (not safe)</H3>
-
-<P>The final and least preferred option is to set the sticky bit
-on the <B>mythfrontend</B> executable. This <B>opens a security hole</B>,
-but is the only option on systems that do not support either
-rlimits or the realtime module. This does not work on modern
-distributions either, and is <B><EM>not recommended</EM></B>
-on any system connected to the Internet. This may also make it
-impossible to debug MythTV without running <B>gdb</B> as root. If you
-would still like to do this, you just need to run this as root:
-<BLOCKQUOTE><CODE>
-<PRE>
-# chmod a+s /usr/local/bin/mythfrontend /usr/local/bin/mythtv
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-
-<H3><A NAME="frontend-only"></A> Frontend-only configuration </H3>
-
-<P>Since MythTV uses a client/server architecture, multiple frontend
-computers can simultaneously access content on a Myth system. Live TV,
-watching and scheduling recordings, etc. are all possible from multiple
-frontends.</P>
-<P>To get a better picture of what is needed to run a frontend, note the
-following:
-<LI>You do NOT need the MySQL server installed on your remote frontend</LI>
-<LI>You do NOT need XMLTV installed on your remote frontend</LI>
-<LI>You do NOT need to run the mythtv-setup program on
-your frontend machine</LI>
-</P>
-<P>Other than the exclusion of the MySQL server and XMLTV, the MythTV
-compilation procedure is the same as when you're setting up both a backend
-and a frontend. However, you <EM>will</EM> need to install the database
-access libraries.</P>
-<P>Once MythTV is compiled and installed:
-<LI>Run the mythtv-setup program on your Master backend. Under the "General"
-menu, change the IP address of the current machine (by default, "127.0.0.1")
-to the real external IP address - 127.0.0.1 is the loopback address and no
-external machine can access it. Change the Master Server IP setting to the
-same IP address as well.</LI>
-<LI>Run the mythfrontend program on your frontend machine,
-and a "Database Configuration" screen should appear.
-Set the "Host name" field to point to your Master backend's IP address.</LI>
-</P>
-
-<H2><A NAME="Gentoo_build"></A> <A NAME="ss5.5">5.5</A> <A HREF="mythtv-HOWTO.html#toc5.5">Gentoo </A>
-</H2>
-
-<P>Installation of MythTV on Gentoo consists of simply emerging the desired
-ebuild because all of the packages are now part of the official Portage tree.
-<BLOCKQUOTE><CODE>
-<PRE>
-$ su -
-# emerge --sync # make sure portage is up to date.
-# vi /etc/make.conf
-</PRE>
-</CODE></BLOCKQUOTE>
-
-Add mysql to your USE variable. i.e. <CODE>USE="mysql ...."</CODE>
-<BLOCKQUOTE><CODE>
-<PRE>
-# emerge mythtv
-</PRE>
-</CODE></BLOCKQUOTE>
-</P>
-<HR>
-<A HREF="mythtv-HOWTO-6.html">Next</A>
-<A HREF="mythtv-HOWTO-4.html">Previous</A>
-<A HREF="mythtv-HOWTO.html#toc5">Contents</A>
-</BODY>
-</HTML>