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From: "Xavier Neys" <neysx@lark.gentoo.org>
Date: Sat, 16 Jul 2005 09:44:34 +0000
To: gentoo-doc-cvs@lists.gentoo.org
Subject: [gentoo-doc-cvs] cvs commit: gentoo-amd64-faq.xml
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neysx       05/07/16 09:44:34

  Modified:    xml/htdocs/doc/en metadoc.xml
  Added:       xml/htdocs/doc/en gentoo-amd64-faq.xml
  Log:
  #99168 New AMD64/FAQ

Revision  Changes    Path
1.80      +7 -2      xml/htdocs/doc/en/metadoc.xml

file : http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/metadoc.xml?rev=1.80&content-type=text/x-cvsweb-markup&cvsroot=gentoo
plain: http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/metadoc.xml?rev=1.80&content-type=text/plain&cvsroot=gentoo
diff : http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/metadoc.xml.diff?r1=1.79&r2=1.80&cvsroot=gentoo

Index: metadoc.xml
===================================================================
RCS file: /var/cvsroot/gentoo/xml/htdocs/doc/en/metadoc.xml,v
retrieving revision 1.79
retrieving revision 1.80
diff -u -r1.79 -r1.80
--- metadoc.xml	14 Jul 2005 18:11:42 -0000	1.79
+++ metadoc.xml	16 Jul 2005 09:44:33 -0000	1.80
@@ -1,9 +1,9 @@
 <?xml version='1.0' encoding="UTF-8"?>
-<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/metadoc.xml,v 1.79 2005/07/14 18:11:42 fox2mike Exp $ -->
+<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/metadoc.xml,v 1.80 2005/07/16 09:44:33 neysx Exp $ -->
 <!DOCTYPE metadoc SYSTEM "/dtd/metadoc.dtd">
 
 <metadoc lang="en">
-<version>1.16</version>
+<version>1.17</version>
   <members>
     <lead>swift</lead>
     <lead>neysx</lead>
@@ -77,6 +77,7 @@
     <file id="2.6-migration">/doc/en/migration-to-2.6.xml</file>
     <file id="altinstall">/doc/en/altinstall.xml</file>
     <file id="faq">/doc/en/faq.xml</file>
+    <file id="gentoo-amd64-faq">/doc/en/gentoo-amd64-faq.xml</file>
     <file id="gentoo-alpha-compaq-tools">/doc/en/gentoo-alpha-compaq-tools.xml</file>
     <file id="handbook-alpha">/doc/en/handbook/handbook-alpha.xml</file>
     <file id="handbook-amd64">/doc/en/handbook/handbook-amd64.xml</file>
@@ -431,6 +432,10 @@
       <memberof>faq</memberof>
       <fileid>faq</fileid>
     </doc>
+    <doc id="gentoo-amd64-faq">
+      <memberof>faq</memberof>
+      <fileid>gentoo-amd64-faq</fileid>
+    </doc>
     <doc id="gentoo-ppc-faq">
       <memberof>faq</memberof>
       <fileid>gentoo-ppc-faq</fileid>



1.1                  xml/htdocs/doc/en/gentoo-amd64-faq.xml

file : http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/gentoo-amd64-faq.xml?rev=1.1&content-type=text/x-cvsweb-markup&cvsroot=gentoo
plain: http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/gentoo-amd64-faq.xml?rev=1.1&content-type=text/plain&cvsroot=gentoo

Index: gentoo-amd64-faq.xml
===================================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/gentoo-amd64-faq.xml,v 1.1 2005/07/16 09:44:33 neysx Exp $ -->

<guide link="/doc/en/gentoo-amd64-faq.xml">
<title>Gentoo Linux/AMD64 Frequently Asked Questions</title>

<author title="Editor">
  <mail link="lmedinas@gmail.com">Luis Medinas</mail>
</author>
<author title="Editor">
  <mail link="gerrynjr@gentoo.org">Gerald J. Normandin Jr.</mail>
</author>
<author title="Editor">
  <mail link="blubb@gentoo.org">Simon Stelling</mail>
</author>
<author title="Editor">
  <mail link="neysx@gentoo.org">Xavier Neys</mail>
</author>

<abstract>
This is the Gentoo Linux/AMD64 Frequently Asked Questions
</abstract>

<!-- The content of this document is licensed under the CC-BY-SA license -->
<!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
<license/>

<version>1.0</version>
<date>2005-07-16</date>

<chapter>
<title>Questions</title>
<section>
<title>Introduction to Gentoo/AMD64 FAQ</title>
<body>

<p>
This document contains the most commonly asked questions about Gentoo/AMD64. We
intend to help and provide useful information about Gentoo/AMD64. Some of these
questions can be found in forums, irc or mailing lists. If you have suggestions
or questions about this FAQ, you are welcome to send an e-mail to the authors
explaining the problem.
</p>

</body>
</section>
<section>
<title>Installation</title>
<body>

<ul>
  <li><uri link="#cflags">What CFLAGS should I use for AMD64/EM64T?</uri></li>
  <li><uri link="#kernel">What kernel should I use?</uri></li>
  <li>
    <uri link="#perfup">Will I have a performance upgrade if I use 64-bit
    system instead of 32-bit?</uri>
  </li>
  <li>
    <uri link="#emul32">How do I get 32-bit emulation for my system?</uri>
  </li>
  <li><uri link="#multilib">What is multilib and how can I use it?</uri></li>
  <li><uri link="#chroot32">How do I create a 32-bit chroot?</uri></li>
  <li>
    <uri link="#upgradex86">Can I upgrade from my x86 system to amd64 by doing
    emerge -e world?</uri>
  </li>
  <li><uri link="#reiser4">Can I use ReiserFS4?</uri></li>
</ul>

</body>
</section>
<section>
<title>Hardware</title>
<body>

<ul>
  <li>
    <uri link="#videobindrivers">Will my binary NVIDIA/ATI drivers work?</uri>
  </li>
  <li>
    <uri link="#coolnquiet">How do I use Cool'n'Quiet/Powernow features?</uri>
  </li>
</ul>

</body>
</section>
<section>
<title>Applications</title>
<body>

<ul>
  <li><uri link="#flash">Can I get Macromedia Flash working?</uri></li>
  <li><uri link="#OOo">Can I get OpenOffice.org working?</uri></li>
  <li><uri link="#java">How do I get java working in my browser?</uri></li>
  <li>
    <uri link="#masked">I want to install package foo, but emerge says: (masked
    by: ~amd64 keyword)</uri>
  </li>
  <li>
    <uri link="#keyword">I want to install package foo, but emerge says:
    (masked by: missing keyword)</uri>
  </li>
</ul>

</body>
</section>
<section>
<title>How can help I the Gentoo/AMD64 project?</title>
<body>

<ul>
  <li><uri link="#bugs">How do I report bugs?</uri></li>
  <li><uri link="#project">How can I help?</uri></li>
</ul>

</body>
</section>
<section>
<title>Other Resources</title>
<body>

<ul>
  <li>
    <uri link="#other">Where can I get more help or information about
    Gentoo/AMD64?</uri>
  </li>
</ul>

</body>
</section>
</chapter>

<chapter>
<title>Installation</title>
<section id="cflags">
<title>What CFLAGS should I use for AMD64/EM64T?</title>
<body>

<p>
You should use simple <c>CFLAGS</c> to avoid future problems with your system.
For example, you should use <c>CFLAGS="-march=k8 -O2 -pipe"</c> for Athlon64 or
Opteron and <c>CFLAGS="-march=nocona -O2 -pipe"</c> for a EM64T processor. If
you plan to use a 32-bit chroot, you should use <c>CFLAGS="-march=athlon-xp
-O2 -pipe -msse2"</c> for a AMD64 processor and for a EM64T, you should use
<c>CFLAGS="-march=pentium4 -O2 -pipe"</c> <e>inside the chroot</e>.
</p>

<note>
<c>-march=k8</c> is the same as <c>-march=athlon64</c> and
<c>-march=opteron</c>.
</note>

<warn>
You should <e>never</e> stick <c>-fPIC</c>, <c>-m32</c> or <c>-m64</c> into
your <c>CFLAGS</c>. They are automatically added whenever they are needed.
Please also note that the <c>-Os</c> flag is currently not supported.
</warn>

</body>
</section>
<section id="kernel">
<title>What kernel should I use for AMD64?</title>
<body>

<p>
You can use almost all kernel sources available in Portage. We recommend to use
<c>gentoo-sources</c> because it is a special flavor kernel designed for Gentoo
Linux. It contains lots of AMD64-specific patches and therefore is the only
flavor supported by Gentoo/AMD64. You can try <c>vanilla-sources</c> as well.
If you feel brave or you need extra hardware support, you can always try the
experimental kernel from Andrew Morton called <c>mm-sources</c>.
</p>

<warn>
You should watch out for some kernel features which are not tested well, such
as <c>PREEMPT</c>.
</warn>

</body>
</section>
<section id="perfup">
<title>Will I have a performance upgrade if I use 64-bit system instead of 32-bit?</title>
<body>

<p>
That is a difficult question to answer. In some cases, you will experience a
performance improvement, in other cases you will not. For everyday use, there
is nearly no difference between 64-bit and 32-bit. 64-bit is generally faster
when it comes to floating point computing which is normally the case in
multimedia applications and 3D rendering. This <uri
link="http://enterprise.linux.com/enterprise/05/06/09/1413209.shtml?tid=121">article</uri>
may interest you. There's also a nice <uri
link="http://forums.gentoo.org/viewtopic-t-349691.html">thread</uri> in our
<uri link="http://forums.gentoo.org">forums</uri>.
</p>

</body>
</section>



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