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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@3822 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
38 lines
1.9 KiB
XML
38 lines
1.9 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-tools-hostreqs">
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<title>Host system requirements</title>
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<?dbhtml filename="hostreqs.html"?>
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<para>Due to the experimental nature of the current book, the host must be
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running at <emphasis>least</emphasis> a 2.6.2 kernel compiled with GCC-3.0 or
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higher. There are two main reasons for the high requirement. Firstly, we make
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use of the Native Posix Threading Library (NPTL) whose testsuite will segfault
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if the host's kernel hasn't been compiled with GCC-3.0 or later. Secondly, the
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2.6.2 or later version of the kernel is required for the use of Udev. Udev
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creates devices dynamically by reading from the
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<systemitem class="filesystem">sysfs</systemitem> file system. Only very
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recently has support for this file system been implemented in most of the kernel
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drivers, however. We must be sure that all the critical system devices get
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created properly.</para>
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<para>In order to check that your host kernel meets the requirements outlined
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above, you can run the following command:</para>
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<screen><userinput>cat /proc/version</userinput></screen>
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<para>This will produce output similar to:</para>
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<blockquote><screen><computeroutput>Linux version 2.6.2 (user@host) (gcc version 3.4.0) #1 Tue Apr 20 21:22:18 GMT 2004</computeroutput></screen></blockquote>
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<para>If the results of the above command state that your host kernel wasn't
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compiled using a GCC-3.0 (or later) compiler, you will need to compile one
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yourself, and reboot your host to use the newly compiled kernel. Instructions
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for compiling the kernel and configuring the bootloader (assuming your host uses
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GRUB) are given in <xref linkend="chapter-bootable"/>.</para>
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</sect1>
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