From 54dc4ed92c087fe623213301935db8765d304961 Mon Sep 17 00:00:00 2001
From: mrpa <miruna.paun@enea.com>
Date: Fri, 13 Mar 2020 19:13:57 +0100
Subject: Updated the prep system section of the ucpe manag. installation
 chapter.

Change-Id: Ic4f1423963862b22b1095ceb03c8b42fa255d5d7
---
 .../doc/getting_started_ucpe_manager.xml           | 29 +++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/doc/book-enea-nfv-access-getting-started/doc/getting_started_ucpe_manager.xml b/doc/book-enea-nfv-access-getting-started/doc/getting_started_ucpe_manager.xml
index 27a5632..ed1876e 100644
--- a/doc/book-enea-nfv-access-getting-started/doc/getting_started_ucpe_manager.xml
+++ b/doc/book-enea-nfv-access-getting-started/doc/getting_started_ucpe_manager.xml
@@ -15,7 +15,7 @@
       </listitem>
 
       <listitem>
-        <para>A machine running CentOS with network access to the physical
+        <para>A machine running CentOS 7 with network access to the physical
         device.</para>
       </listitem>
 
@@ -91,6 +91,33 @@
       <title>Preparing your system</title>
 
       <orderedlist>
+        <listitem>
+          <para>Install Java:</para>
+	
+	  <orderedlist>
+	    <listitem><para>Install OpenJDK 11:</para>
+		<programlisting>sudo yum install java-11-openjdk-devel</programlisting>
+		</listitem>
+            <listitem><para>Verify the installation:</para>
+<programlisting>java -version
+
+openjdk version "11.0.3" 2019-04-16 LTS
+OpenJDK Runtime Environment 18.9 (build 11.0.3+7-LTS)
+OpenJDK 64-Bit Server VM 18.9 (build 11.0.3+7-LTS, mixed mode, sharing)</programlisting></listitem>
+            
+	    <listitem><para>The following system variables need to point to the OpenJDK 11 installation:</para>
+<programlisting>export JAVA_HOME=$(dirname $(dirname $(readlink $(readlink $(which javac)))))
+export PATH=$PATH:$JAVA_HOME/bin
+export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar
+</programlisting>
+            </listitem>
+	   </orderedlist>
+	  
+	   <note><para>If there are multiple java versions installed, switch between them using the 
+             following command:</para>
+		<programlisting>alternatives --config java</programlisting></note>
+        </listitem>
+
         <listitem>
           <para>Open a terminal with administrative rights, i.e. log into a
           <emphasis role="bold">bash</emphasis> shell with
-- 
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