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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<chapter id="sys-req-prerequisites">
<title>System Requirements and Prerequisites</title>
<para>Using Enea NFV Access or compiling applications requires certain
packages to be installed on your NFV Access development host.</para>
<section id="enea-nfv-access-sysreq">
<title>System Requirements</title>
<para>The host requirements listed below are extensive to allow getting
Enea NFV Access to be booted on target machines and for building
applications.</para>
<informaltable>
<tgroup cols="2">
<colspec align="left" colname="1" colwidth="1*" />
<colspec align="left" colname="2" colwidth="3*" />
<spanspec nameend="2" namest="1" spanname="onetwo" />
<tbody>
<row>
<entry spanname="onetwo"><emphasis role="bold"> Build Host
Requirements<indexterm>
<primary>system requirements</primary>
</indexterm></emphasis></entry>
</row>
<row>
<entry>Linux distribution</entry>
<entry>The downloaded product can installed on the target machine
using a Linux host. For information about the supported hosts and
targets, see <xref
linkend="relinfo-supported-host-environment" />.</entry>
</row>
<row>
<entry>Packages</entry>
<entry>Depending on the Linux distribution and version of the
host, some packages may be required. See details on what packages
are needed and how to install, in the following sections.</entry>
</row>
<row>
<entry>Disk space</entry>
<entry>Your system should have at least 50 GB of free disk space
for installing the SDK or cross-compiling applications.</entry>
</row>
<row>
<entry>Recommended RAM</entry>
<entry>Your system must have at least 4 GB available RAM.</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>
<section id="ensure-bash">
<title>System Shell Configuration</title>
<para>Before installing Enea NFV Access, ensure that bash is the default
shell.</para>
<para>If your system runs Ubuntu, you can use ls -l to ensure
<filename>/usr/bin</filename> is a symbolic link to bash. In case the link
points to dash, which is default in some Ubuntu versions, change it to
bash by running <emphasis role="bold">sudo dpkg-reconfigure
dash</emphasis> and answer <emphasis role="bold">No</emphasis> to the
question "Use dash as the default system shell (/bin/sh)?":</para>
<programlisting># ls -l /bin/sh
lrwxrwxrwx 1 root root 4 2012-03-02 11:53 /bin/sh -> bash</programlisting>
</section>
<section id="preq-packages">
<title>Prerequisite Packages</title>
<para>First ensure the system is up-to-date, then for the supported
distribution(s), you need the following packages:<remark>INFO: The
programlisting below is a parameters in eltf_params_updated.xml with ID:
"eltf-prereq-apt-get-command-host". If multiple hosts are supported, store
the commands for each host in the same programlisting with empty lines
between each - the comment with the FULL HOST name and version is
essential.</remark></para>
<xi:include href="eltf_params_updated.xml"
xmlns:xi="http://www.w3.org/2001/XInclude"
xpointer="element(eltf-prereq-apt-get-commands-host/1)" />
</section>
<section id="dns-server">
<title>Installing and Configuring the DNS server</title>
<para>CONTENT NEEDED</para>
</section>
</chapter>
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