2 commits - Installation_Guide/en-US

Jeroen van Meeuwen vanmeeuwen at kolabsys.com
Fri May 11 02:52:33 CEST 2012


 Installation_Guide/en-US/Kolab_Server_Configuration.xml                                   |   29 
 Installation_Guide/en-US/Kolab_Server_First_Login.xml                                     |   63 +
 Installation_Guide/en-US/Kolab_Server_Installation.xml                                    |   30 
 Installation_Guide/en-US/Preparing_the_System.xml                                         |  155 ++-
 Installation_Guide/en-US/part-Kolab_Server.xml                                            |    1 
 Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml |  514 +++++-----
 6 files changed, 492 insertions(+), 300 deletions(-)

New commits:
commit 2438583bdc2094285507735373c4e94da8a40041
Author: Jeroen van Meeuwen (Kolab Systems) <vanmeeuwen at kolabsys.com>
Date:   Fri May 11 01:52:04 2012 +0100

    Add a chapter on first login notes and items
    Update rest of documentation as well

diff --git a/Installation_Guide/en-US/Kolab_Server_Configuration.xml b/Installation_Guide/en-US/Kolab_Server_Configuration.xml
index 7542004..5ad0e19 100755
--- a/Installation_Guide/en-US/Kolab_Server_Configuration.xml
+++ b/Installation_Guide/en-US/Kolab_Server_Configuration.xml
@@ -8,22 +8,31 @@
     <para>
         To bootstrap a default Kolab installation, with all components installed on a single system, the <command>setup-kolab</command> utility can be used. Run <command>setup-kolab</command> without any arguments to set up all Kolab components.
     </para>
+    <para>
+        For non-default or distributed installations, trigger the setup of one or more components using <command>setup-kolab <component></command>. See <command>setup-kolab help</command> for a list of components for which configuration is available.
+    </para>
     <important>
         <para>
-            The setup utility by default asks for a bare minimum of input, and uses data available from the system, such as the system's fully qualified domain name (hostname and domain name parts) to setup the system with. To customize the installation, please refer to <xref linkend="sect-Community_Installation_Guide-Configuration-Customizing_the_Setup_Process" />.
+            The setup utility by default asks for a bare minimum of input, and uses data available from the system, such as the system's fully qualified domain name (hostname and domain name parts, obtained from the reverse DNS entry on the network) to setup the system with.
+        </para>
+        <para>
+            To use a custom hostname and domain-name, execute <command>setup-kolab</command> with the <literal>--fqdn</literal> option, specifying a fully qualified domain name. Fully qualified domain names are expected to consist of three components, the hostname, domain name and top-level domain, divided by a "." (dot) character.
+        </para>
+        <para>
+            The FQDN used, in any case, should resolve back to the system Kolab is being set up on.
+        </para>
+        <para>
+            To further customize the installation, please refer to <xref linkend="sect-Community_Installation_Guide-Configuration-Customizing_the_Setup_Process" />.
         </para>
 
     </important>
-    <para>
-        For non-default or distributed installations, trigger the setup of one or more components using <command>setup-kolab <component></command>. See <command>setup-kolab help</command> for a list of components for which configuration is available.
-    </para>
     <section id="sect-Community_Installation_Guide-Configuration-Customizing_the_Setup_Process">
         <title>Customizing the Setup Process</title>
         <para>
             Specify a configuration file in any other location than the default location of <filename>/etc/kolab.kolab.conf</filename> to customize the setup process. <command>setup-kolab</command> accepts the <literal>--config=<replaceable>/path/to/file</replaceable></literal> command-line option for this purpose.
         </para>
-        <example id="exam-Community_Installation_Guide-Customizing_the_Setup_Process-Setting_up_Kolab_with_a_customized_configuration_file">
-            <title>Setting up Kolab with a customized configuration file</title>
+        <example id="exam-Community_Installation_Guide-Customizing_the_Setup_Process-Setting_up_Kolab_with_a_Customized_Configuration_File">
+            <title>Setting up Kolab with a Customized Configuration File</title>
             <para>
                 The following is an example of setting up a Kolab Groupware server with the help of a customized configuration file.
             </para>
@@ -35,7 +44,7 @@
         </example>
         <important>
             <para>
-                Make sure the configuration file supplied to the setup process is complete, or the setup process will fail.
+                Make sure the configuration file supplied to the setup process is complete and contains all settings in the original configuration file, or the setup process will fail.
             </para>
 
         </important>
@@ -47,6 +56,12 @@
         <para>
             The LDAP component of the setup utility configures a 389 Directory Server installation that has not yet been set up to work for a Kolab Groupware deployment, by feeding answers to <command>setup-ds-admin.pl</command> through an answer file, loading the Kolab LDAP Schema extenions, and adding the default set of user accounts Kolab Groupware requires.
         </para>
+        <important>
+            <para>
+                At the time of this writing, the setup for the LDAP component expects the setup is performed on a clean system, that has no existing LDAP server or server instance running.
+            </para>
+
+        </important>
         <para>
             This component also writes out the Kolab configuration file <filename>/etc/kolab/kolab.conf</filename>, which is used by the other components' setup procedures. In case the LDAP component is set up on a separate system, use the resulting <filename>/etc/kolab/kolab.conf</filename> as the setup configuration file for the other components.
         </para>
diff --git a/Installation_Guide/en-US/Kolab_Server_First_Login.xml b/Installation_Guide/en-US/Kolab_Server_First_Login.xml
new file mode 100644
index 0000000..22b50e9
--- /dev/null
+++ b/Installation_Guide/en-US/Kolab_Server_First_Login.xml
@@ -0,0 +1,63 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "Community_Installation_Guide.ent">
+%BOOK_ENTITIES;
+]>
+<chapter id="chap-Community_Installation_Guide-First_Login">
+    <title>First Login</title>
+    <para>
+        Once you have successfully set up the Kolab Groupware server, it is time to add some users.
+    </para>
+    <para>
+        Navigate to the /kolab-webadmin URL on your webserver using HTTP. For example, a server set up on localhost would be at http://127.0.0.1/kolab-webadmin.
+    </para>
+    <para>
+        Login using the username <literal>cn=Directory Manager</literal> and the password you supplied during the setup process.
+    </para>
+    <section id="sect-Community_Installation_Guide-First_Login-Creating_a_User">
+        <title>Creating a User</title>
+        <para>
+            Create a first user, and verify the account is created successfully using <command>ldapsearch</command> from a terminal.
+        </para>
+        <para>
+            A mailbox should now also have been created. Examine the output of <command>/usr/lib/cyrus-imapd/ctl_mboxlist -d</command>, or, alternatively, run <command>kolab list-mailboxes</command>.
+        </para>
+        <section id="sect-Community_Installation_Guide-Creating_a_User-Troubleshooting">
+            <title>Troubleshooting</title>
+            <formalpara id="form-Community_Installation_Guide-Troubleshooting-LDAP_Entry_Created_but_No_Mailbox">
+                <title>LDAP Entry Created, but No Mailbox</title>
+                <para>
+                    This is a common error should no recipient policy be in place. Please see the Administrator Guide for more details on the recipient policy.
+                </para>
+
+            </formalpara>
+            <formalpara id="form-Community_Installation_Guide-Troubleshooting-Cannot_Supply_Mail_andor_Alternative_Mail_Addresses_for_the_User">
+                <title>Cannot Supply Mail and/or Alternative Mail Addresses for the User</title>
+                <para>
+                    Set <literal>auto_fields_admin_rw</literal> to <literal>True</literal> in section <literal>[kolab_wap]</literal> in <filename>/etc/kolab/kolab.conf</filename> and log out and back in to the Kolab Web Administration Panel.
+                </para>
+
+            </formalpara>
+
+        </section>
+
+
+    </section>
+
+    <section id="sect-Community_Installation_Guide-First_Login-Creating_a_Kolab_Administrator">
+        <title>Creating a Kolab Administrator</title>
+        <para>
+            It is very important to realize the <literal>cn=Directory Manager</literal> is virtually the "root" user on the LDAP directory server. You should not need to use the account for day-to-day operations.
+        </para>
+        <para>
+            The default Kolab Groupware deployment has added a so-called <emphasis>role</emphasis> to the directory tree that allows accounts that have such role to edit, add and remove entries from the directory tree.
+        </para>
+        <para>
+            Create a new account or choose an existing account and navigate to the <emphasis>System</emphasis> tab. In the <emphasis>Role(s)</emphasis>, enter <userinput>kolab</userinput> and select the <emphasis>kolab-admin</emphasis> entry. Click <emphasis>Submit</emphasis> to save the changes.
+        </para>
+
+    </section>
+
+
+</chapter>
+
diff --git a/Installation_Guide/en-US/Kolab_Server_Installation.xml b/Installation_Guide/en-US/Kolab_Server_Installation.xml
index 03976e5..b129f26 100755
--- a/Installation_Guide/en-US/Kolab_Server_Installation.xml
+++ b/Installation_Guide/en-US/Kolab_Server_Installation.xml
@@ -11,7 +11,7 @@
     <section id="sect-Community_Installation_Guide-Installation-Kolab_Server_Installation">
         <title>Kolab Server Installation</title>
         <para>
-            To get a fully working Kolab installation all of the components listed in <xref linkend="chap-Community_Installation_Guide-Kolab_Server" /> need to be installed.
+            To get a fully working Kolab installation all of the components listed in <xref linkend="chap-Community_Installation_Guide-First_Login" /> need to be installed.
         </para>
         <para>
             The Kolab community provides APT and RPM packages for most commonly used Linux distributions. To get a fully working Kolab server on a single system, please install the “kolab-groupware” meta-package which will install all components, and run the setup script on a single system.
@@ -110,7 +110,7 @@
                                 Complete Server
                             </entry>
                             <entry>
-                                kolab-groupware-server
+                                kolab
                             </entry>
                             <entry>
                                 -
@@ -137,7 +137,7 @@
                                 -
                             </entry>
                             <entry>
-                                The LDAP component (openldap by default).
+                                The LDAP component (389 Directory Server).
                             </entry>
 
                         </row>
@@ -149,13 +149,13 @@
                                 kolab-imap
                             </entry>
                             <entry>
-                                kolab-imap-dovecot
+                                -
                             </entry>
                             <entry>
                                 -
                             </entry>
                             <entry>
-                                The IMAP component (cyrus by default).
+                                The IMAP component (Cyrus IMAP).
                             </entry>
 
                         </row>
@@ -173,7 +173,7 @@
                                 -
                             </entry>
                             <entry>
-                                The MTA component (postfix by default).
+                                The MTA component (Postfix by default).
                             </entry>
 
                         </row>
@@ -197,24 +197,6 @@
                         </row>
                         <row>
                             <entry>
-                                Webclient-Database
-                            </entry>
-                            <entry>
-                                kolab-webclient-database
-                            </entry>
-                            <entry>
-                                -
-                            </entry>
-                            <entry>
-                                -
-                            </entry>
-                            <entry>
-                                -
-                            </entry>
-
-                        </row>
-                        <row>
-                            <entry>
                                 Webclient
                             </entry>
                             <entry>
diff --git a/Installation_Guide/en-US/Preparing_the_System.xml b/Installation_Guide/en-US/Preparing_the_System.xml
index ec2cb99..8f5a877 100644
--- a/Installation_Guide/en-US/Preparing_the_System.xml
+++ b/Installation_Guide/en-US/Preparing_the_System.xml
@@ -43,6 +43,141 @@
 
     </section>
 
+    <section id="sect-Community_Installation_Guide-Preparing_the_System-SELinux">
+        <title>SELinux</title>
+        <para>
+            Not all components of Kolab Groupware are currently completely compatible with running under SELinux enforcing the targeted policy.
+        </para>
+        <para>
+            Please consider configuring SELinux to be permissive. Please let us know what AVC denials occur so we can work on fixing the issue.
+        </para>
+
+    </section>
+
+    <section id="sect-Community_Installation_Guide-Preparing_the_System-System_Firewall">
+        <title>System Firewall</title>
+        <para>
+            Kolab Groupware deliberately does not touch any firewall settings, perhaps wrongly assuming you know best. Before you continue, you should verify your firewall allows the standard ports used with Kolab Groupware. These ports include:
+        </para>
+        <para>
+            <itemizedlist>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_25_tcp">
+                        <title>Port 25, tcp</title>
+                        <para>
+                            Used to receive emails.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_80_tcp">
+                        <title>Port 80, tcp</title>
+                        <para>
+                            Used for web interfaces.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_110_tcp">
+                        <title>Port 110, tcp</title>
+                        <para>
+                            Used for POP.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_143_tcp">
+                        <title>Port 143, tcp</title>
+                        <para>
+                            Used for web IMAP.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_389_tcp">
+                        <title>Port 389, tcp</title>
+                        <para>
+                            Used for LDAP directory services.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_443_tcp">
+                        <title>Port 443, tcp</title>
+                        <para>
+                            Used for secure web interfaces.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_465_tcp">
+                        <title>Port 465, tcp</title>
+                        <para>
+                            Used for secure mail transmission.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_567_tcp">
+                        <title>Port 567, tcp</title>
+                        <para>
+                            Used for secure mail submission.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_636_tcp">
+                        <title>Port 636, tcp</title>
+                        <para>
+                            Used for secure LDAP directory services.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_993_tcp">
+                        <title>Port 993, tcp</title>
+                        <para>
+                            Used for secure IMAP.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+                <listitem>
+                    <formalpara id="form-Community_Installation_Guide-System_Firewall-Port_995_tcp">
+                        <title>Port 995, tcp</title>
+                        <para>
+                            Used for secure POP.
+                        </para>
+
+                    </formalpara>
+
+                </listitem>
+
+            </itemizedlist>
+
+        </para>
+
+    </section>
+
     <section id="sect-Community_Installation_Guide-Preparing_the_System-System_Users">
         <title>System Users</title>
         <para>
diff --git a/Installation_Guide/en-US/part-Kolab_Server.xml b/Installation_Guide/en-US/part-Kolab_Server.xml
index 19c54a1..fba3b01 100755
--- a/Installation_Guide/en-US/part-Kolab_Server.xml
+++ b/Installation_Guide/en-US/part-Kolab_Server.xml
@@ -9,6 +9,7 @@
     <xi:include href="Kolab_Server_Overview.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
     <xi:include href="Kolab_Server_Installation.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
     <xi:include href="Kolab_Server_Configuration.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
+    <xi:include href="Kolab_Server_First_Login.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
     <xi:include href="Kolab_Server_Appendix.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
 </part>
 
diff --git a/Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml b/Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml
index 70fcf4a..6176ace 100644
--- a/Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml
+++ b/Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml
@@ -577,6 +577,15 @@
             </para>
 
         </formalpara>
+        <example id="exam-Community_Installation_Guide-Repository_Package_Stages-Installing_an_Update_from_updates_testing">
+            <title>Installing an Update from <emphasis>updates-testing</emphasis></title>
+            <para>
+
+<screen># <userinput>yum --enablerepo=kolab-&PRODUCT_VERSION;-updates-testing update [package]</userinput></screen>
+
+            </para>
+
+        </example>
         <formalpara id="form-Community_Installation_Guide-Repository_Package_Stages-Software_Currently_in_Development">
             <title>Software Currently in Development</title>
             <para>


commit ad24998110c434057c33b2a48c6a201dfd43f403
Author: Jeroen van Meeuwen (Kolab Systems) <vanmeeuwen at kolabsys.com>
Date:   Fri May 11 01:18:31 2012 +0100

    Update documentation starting with the Installation Guide

diff --git a/Installation_Guide/en-US/Kolab_Server_Installation.xml b/Installation_Guide/en-US/Kolab_Server_Installation.xml
index ceb216a..03976e5 100755
--- a/Installation_Guide/en-US/Kolab_Server_Installation.xml
+++ b/Installation_Guide/en-US/Kolab_Server_Installation.xml
@@ -11,7 +11,7 @@
     <section id="sect-Community_Installation_Guide-Installation-Kolab_Server_Installation">
         <title>Kolab Server Installation</title>
         <para>
-            To get a fully working Kolab installation all of the 6 components above need to be installed.
+            To get a fully working Kolab installation all of the components listed in <xref linkend="chap-Community_Installation_Guide-Kolab_Server" /> need to be installed.
         </para>
         <para>
             The Kolab community provides APT and RPM packages for most commonly used Linux distributions. To get a fully working Kolab server on a single system, please install the “kolab-groupware” meta-package which will install all components, and run the setup script on a single system.
diff --git a/Installation_Guide/en-US/Preparing_the_System.xml b/Installation_Guide/en-US/Preparing_the_System.xml
index 606deb7..ec2cb99 100644
--- a/Installation_Guide/en-US/Preparing_the_System.xml
+++ b/Installation_Guide/en-US/Preparing_the_System.xml
@@ -8,39 +8,28 @@
     <para>
         The installation of Kolab requires you prepare the system for installation.
     </para>
-    <section id="sect-Community_Installation_Guide-Preparing_the_System-Prerequisites">
-        <title>Prerequisites</title>
+    <section id="sect-Community_Installation_Guide-Preparing_the_System-Partitioning">
+        <title>Partitioning</title>
         <para>
-            The installation of Kolab requires one of the following operating system versions:
+            When installing the Kolab server, we recommend using LVM when partitioning the system. The following directories could benefit from being on separate logical volumes, leaving about 10% of raw disk space in the volume group unallocated:
         </para>
         <para>
             <itemizedlist>
                 <listitem>
                     <para>
-                        Red Hat Enterprise Linux 5, see also <xref linkend="sect-Community_Installation_Guide-Preparing_the_System-Enterprise_Linux" />.
+                        <filename>/var/lib/mysql/</filename>
                     </para>
 
                 </listitem>
                 <listitem>
                     <para>
-                        FIXME: Other supported Operating System versions
+                        <filename>/var/lib/imap/</filename>
                     </para>
 
                 </listitem>
-
-            </itemizedlist>
-
-        </para>
-
-    </section>
-
-    <section id="sect-Community_Installation_Guide-Preparing_the_System-Recommendations">
-        <title>Recommendations</title>
-        <para>
-            <itemizedlist>
                 <listitem>
                     <para>
-                        We recommend a x86_64 capable version of the Operating System
+                        <filename>/var/spool/imap/</filename>
                     </para>
 
                 </listitem>
@@ -48,22 +37,25 @@
             </itemizedlist>
 
         </para>
+        <para>
+            For large or multi-domain installations, we suggest moving <filename>/var/lib/imap/</filename> and <filename>/var/spool/imap/</filename> to <filename>/srv/imap/[<replaceable>$domain</replaceable>/]config/</filename> and <filename>/srv/imap/[<replaceable>$domain</replaceable>/]default/</filename> respectively. In allowing <filename>/srv/imap/</filename> to be one separate partition, backup using LVM snapshots is easier. Note that <replaceable>$domain</replaceable> in the aforementioned path is optional, and should only be used when multiple, but separate, isolated IMAP servers are to be started.
+        </para>
 
     </section>
 
-    <section id="sect-Community_Installation_Guide-Preparing_the_System-Enterprise_Linux">
-        <title>Enterprise Linux</title>
+    <section id="sect-Community_Installation_Guide-Preparing_the_System-System_Users">
+        <title>System Users</title>
         <para>
             <orderedlist>
                 <listitem>
                     <para>
-                        No user or group with ID 412 may exist on the system prior to the installation of Kolab.
+                        No user or group with IDs 412, 413 or 414 may exist on the system prior to the installation of Kolab.
                     </para>
 
                 </listitem>
                 <listitem>
                     <para>
-                        No user or group with the name <literal>kolab</literal> may exist on the system prior to the installation of Kolab.
+                        No user or group with the names <literal>kolab</literal>, <literal>kolab-n</literal> or <literal>kolab-r</literal> may exist on the system prior to the installation of Kolab.
                     </para>
 
                 </listitem>
diff --git a/Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml b/Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml
index 76f6f29..70fcf4a 100644
--- a/Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml
+++ b/Installation_Guide/en-US/sect-Repository_Configuration-Installation_with_RPM_Packages.xml
@@ -234,156 +234,110 @@
         </table>
 
     </para>
-    <section id="sect-Community_Installation_Guide-Installation_with_RPM_Packages-Prerequisites">
-        <title>Prerequisites</title>
+    <para>
+        Before the installation, it is necessary to install the configuration for the Kolab software repositories.
+    </para>
+    <section id="sect-Community_Installation_Guide-Installation_with_RPM_Packages-Using_the_Priorities_YUM_Plugin_to_Avoid_Package_Conflicts">
+        <title>Using the Priorities YUM Plugin to Avoid Package Conflicts</title>
         <para>
-            Before the installation, it is necessary to install the configuration for the Kolab software repositories.
+            Since any given package may, at any time, be or become available to the system through both the Kolab repositories as well as through the regular distribution repositories, to avoid the risk of switching back and forth between the two different versions continuously, by mistake or by accident, we recommend you use the following procedure including employing YUM repository priorities to eliminate the risk of running in such problems in the future.
         </para>
-        <section id="sect-Community_Installation_Guide-Prerequisites-CentOS">
-            <title>CentOS</title>
-            <para>
-                For full instructions on installing Kolab Groupware on CentOS, please refer to the instructions in <xref linkend="sect-Community_Installation_Guide-Prerequisites-Red_Hat_Enterprise_Linux" />.
-            </para>
-            <note>
-                <title>Disable 'addons' and 'extras' repositories</title>
+        <para>
+            Consider installing the <application>yum-priorities</application> (Enterprise Linux 5) or <application>yum-plugin-priorities</application> package (all other platforms) to avoid such conflicts.
+        </para>
+        <procedure id="proc-Community_Installation_Guide-Using_the_Priorities_YUM_Plugin_to_Avoid_Package_Conflicts-Installing_and_Configuring_YUM_priorities">
+            <title>Installing and Configuring YUM priorities</title>
+            <step>
+                <title>Enterprise Linux 5</title>
                 <para>
-                    Please be aware that on CentOS, you will need to disable the 'addons' and 'extras' repositories, as they contain packages not part of the Enterprise Linux base operating system.
+                    The <application>yum-priorities</application> is available from the <ulink url="http://fedoraproject.org/wiki/EPEL">EPEL package repository</ulink>. Please install it:
                 </para>
                 <para>
-                    The disable these repositories, edit <filename>/etc/yum.repos.d/CentOS-Base.repo</filename> and append a setting <code>enabled=0</code> to sections <code>[addons]</code> and <code>[extras]</code>, or delete the sections entirely.
+
+<screen># <userinput>yum install yum-priorities</userinput></screen>
+
                 </para>
 
-            </note>
+            </step>
+            <step>
+                <title>Enterprise Linux 6</title>
+                <para>
+                    The <application>yum-plugin-priorities</application> is available from the <ulink url="http://fedoraproject.org/wiki/EPEL">EPEL package repository</ulink>. Please install it:
+                </para>
+                <para>
 
-        </section>
+<screen># <userinput>yum install yum-plugin-priorities</userinput></screen>
 
-        <section id="sect-Community_Installation_Guide-Prerequisites-Fedora">
-            <title>Fedora</title>
-            <para>
-                The Kolab software repositories for Fedora ship two so-called <literal>-release</literal> packages:
-            </para>
-            <para>
-                <orderedlist>
-                    <listitem condition="community">
-                        <para>
-                            <literal>kolab-&PRODUCT_VERSION;-community-release</literal>
-                        </para>
-                        <para>
-                            Depending on the version of Fedora, find the <literal>-release</literal> package at:
-                        </para>
-                        <para>
-                            <itemizedlist>
-                                <listitem>
-                                    <para>
-                                        <ulink url="http://mirror.kolabsys.com/pub/redhat/kolab-2.4/f16/release/i386/repoview/kolab-2.4-community-release.html">Fedora 16 (Verne)</ulink>
-                                    </para>
-
-                                </listitem>
-                                <listitem>
-                                    <para>
-                                        <ulink url="http://mirror.kolabsys.com/pub/redhat/kolab-2.4/f17/release/i386/repoview/kolab-2.4-community-release.html">Fedora 17 (Beefy Miracle)</ulink>
-                                    </para>
-
-                                </listitem>
-
-                            </itemizedlist>
-
-                        </para>
-
-                    </listitem>
-                    <listitem condition="enterprise">
-                        <para>
-                            <literal>kolab-&PRODUCT_VERSION;-enterprise-release</literal>
-                        </para>
-                        <para>
-                            Depending on the version of Fedora, find the <literal>-release</literal> package at:
-                        </para>
-                        <para>
-                            <itemizedlist>
-                                <listitem>
-                                    <para>
-                                        <ulink url="https://mirror.kolabsys.com/redhat/kolab-2.4/f16/release/i386/repoview/kolab-2.4-enterprise-release.html">Fedora 16 (Verne)</ulink>
-                                    </para>
-
-                                </listitem>
-                                <listitem>
-                                    <para>
-                                        <ulink url="https://mirror.kolabsys.com/redhat/kolab-2.4/f17/release/i386/repoview/kolab-2.4-enterprise-release.html">Fedora 17 (Beefy Miracle)</ulink>
-                                    </para>
-
-                                </listitem>
-
-                            </itemizedlist>
-
-                        </para>
-
-                    </listitem>
-                    <listitem condition="community">
-                        <para>
-                            <literal>kolab-&PRODUCT_VERSION;-community-release-development</literal>
-                        </para>
-                        <para>
-                            You can install the <literal>kolab-&PRODUCT_VERSION;-community-release-development</literal> package using YUM, after having installed the <literal>kolab-&PRODUCT_VERSION;-community-release</literal> package;
-                        </para>
-                        <para>
+                </para>
 
-<screen># <userinput>yum install kolab-&PRODUCT_VERSION;-community-release-development</userinput></screen>
+            </step>
+            <step>
+                <title>Fedora</title>
+                <para>
+                    The <application>yum-plugin-priorities</application> is available in the standard repositories. Please install it:
+                </para>
+                <para>
 
-                        </para>
+<screen># <userinput>yum install yum-plugin-priorities</userinput></screen>
 
-                    </listitem>
-                    <listitem condition="enterprise">
-                        <para>
-                            <literal>kolab-&PRODUCT_VERSION;-enterprise-release-development</literal>
-                        </para>
-                        <para>
-                            You can install the <literal>kolab-&PRODUCT_VERSION;-enterprise-release-development</literal> package using YUM, after having installed the <literal>kolab-&PRODUCT_VERSION;-enterprise-release</literal> package;
-                        </para>
-                        <para>
+                </para>
 
-<screen># <userinput>yum install kolab-&PRODUCT_VERSION;-enterprise-release-development</userinput></screen>
+            </step>
+            <step>
+                <para>
+                    The repositories that have been installed using the <literal condition="community">kolab-&PRODUCT_VERSION;-community-release</literal><literal condition="enterprise">kolab-&PRODUCT_VERSION;-enterprise-release</literal> package(s) have a pre-configured priority of <code>50</code>. The default repository priority is <code>99</code>. This will set the correct priorities, unless you have repositories configured other than the base operating system repositories (not including 'addons' and 'extras' on CentOS platforms), EPEL and the Kolab Groupware repositories. Should the system happen to already make use of YUM priorities, please make sure the Kolab repositories have the appropriate priority.
+                </para>
 
-                        </para>
+            </step>
 
-                    </listitem>
+        </procedure>
 
-                </orderedlist>
 
-            </para>
+    </section>
+
+    <section id="sect-Community_Installation_Guide-Installation_with_RPM_Packages-CentOS">
+        <title>CentOS</title>
+        <para>
+            For full instructions on installing Kolab Groupware on CentOS, please refer to the instructions in <xref linkend="sect-Community_Installation_Guide-Installation_with_RPM_Packages-Red_Hat_Enterprise_Linux" />.
+        </para>
+        <note>
+            <title>Disable 'addons' and 'extras' repositories</title>
             <para>
-                Install this package using the following command:
+                Please be aware that on CentOS, you will need to disable the 'addons' and 'extras' repositories, as they contain packages not part of the Enterprise Linux base operating system.
             </para>
             <para>
-
-<screen># <userinput>wget http://url/to/rpm</userinput>
-<userinput># yum localinstall --nogpgcheck /path/to/rpm</userinput></screen>
-
+                The disable these repositories, edit <filename>/etc/yum.repos.d/CentOS-Base.repo</filename> and append a setting <code>enabled=0</code> to sections <code>[addons]</code> and <code>[extras]</code>, or delete the sections entirely.
             </para>
 
-        </section>
+        </note>
 
-        <section id="sect-Community_Installation_Guide-Prerequisites-Red_Hat_Enterprise_Linux">
-            <title>Red Hat Enterprise Linux</title>
-            <para>
-                The <ulink url="http://fedoraproject.org/wiki/EPEL">EPEL</ulink> repository is required for Kolab Groupware on Red Hat Enterprise Linux. Install the EPEL repository using the following procedure:
-            </para>
-            <procedure id="proc-Community_Installation_Guide-Red_Hat_Enterprise_Linux-Installing_the_epel_release_Package">
-                <title>Installing the <application>epel-release</application> Package</title>
-                <step>
+    </section>
+
+    <section id="sect-Community_Installation_Guide-Installation_with_RPM_Packages-Fedora">
+        <title>Fedora</title>
+        <para>
+            The Kolab software repositories for Fedora ship two so-called <literal>-release</literal> packages:
+        </para>
+        <para>
+            <orderedlist>
+                <listitem condition="community">
                     <para>
-                        Depending on the version of Red Hat Enterprise Linux, install the package as it is listed on the following page:
+                        <literal>kolab-&PRODUCT_VERSION;-community-release</literal>
+                    </para>
+                    <para>
+                        Depending on the version of Fedora, find the <literal>-release</literal> package at:
                     </para>
                     <para>
                         <itemizedlist>
                             <listitem>
                                 <para>
-                                    <ulink url="http://download.fedoraproject.org/pub/epel/5/i386/repoview/epel-release.html">Enterprise Linux 5</ulink> (Tikanga)
+                                    <ulink url="http://mirror.kolabsys.com/pub/redhat/kolab-2.4/f16/release/i386/repoview/kolab-2.4-community-release.html">Fedora 16 (Verne)</ulink>
                                 </para>
 
                             </listitem>
                             <listitem>
                                 <para>
-                                    <ulink url="http://download.fedoraproject.org/pub/epel/6/i386/repoview/epel-release.html">Enterprise Linux 6</ulink> (Santiago)
+                                    <ulink url="http://mirror.kolabsys.com/pub/redhat/kolab-2.4/f17/release/i386/repoview/kolab-2.4-community-release.html">Fedora 17 (Beefy Miracle)</ulink>
                                 </para>
 
                             </listitem>
@@ -392,203 +346,244 @@
 
                     </para>
 
-                </step>
-                <step>
+                </listitem>
+                <listitem condition="enterprise">
+                    <para>
+                        <literal>kolab-&PRODUCT_VERSION;-enterprise-release</literal>
+                    </para>
                     <para>
-                        Install this package using the following command:
+                        Depending on the version of Fedora, find the <literal>-release</literal> package at:
                     </para>
                     <para>
+                        <itemizedlist>
+                            <listitem>
+                                <para>
+                                    <ulink url="https://mirror.kolabsys.com/redhat/kolab-2.4/f16/release/i386/repoview/kolab-2.4-enterprise-release.html">Fedora 16 (Verne)</ulink>
+                                </para>
 
-<screen># <userinput>wget http://url/to/rpm</userinput>
-<userinput># yum localinstall --nogpgcheck /path/to/rpm</userinput></screen>
+                            </listitem>
+                            <listitem>
+                                <para>
+                                    <ulink url="https://mirror.kolabsys.com/redhat/kolab-2.4/f17/release/i386/repoview/kolab-2.4-enterprise-release.html">Fedora 17 (Beefy Miracle)</ulink>
+                                </para>
 
-                    </para>
+                            </listitem>
 
-                </step>
+                        </itemizedlist>
 
-            </procedure>
+                    </para>
 
-            <para condition="enterprise">
-                For access to the Enterprise edition, you must have been issued a SSL certificate by Kolab Systems. How to obtain, renew and use the SSL certificate to provide you with access to the Enterprise editions, please read <ulink url="https://support.kolabsys.com/Obtaining,_Renewing_and_Using_a_Client_SSL_Certificate" />.
-            </para>
-            <para>
-                The Kolab software repositories for Red Hat Enterprise Linux ship two so-called <literal>-release</literal> packages:
-            </para>
-            <para>
-                <orderedlist>
-                    <listitem condition="community">
-                        <para>
-                            <literal>kolab-&PRODUCT_VERSION;-community-release</literal>
-                        </para>
-                        <para>
-                            Depending on the version of Red Hat Enterprise Linux, find the <literal>-release</literal> package at:
-                        </para>
-                        <para>
-                            <itemizedlist>
-                                <listitem>
-                                    <para>
-                                        <ulink url="http://mirror.kolabsys.com/pub/redhat/kolab-2.4/el5/release/i386/repoview/kolab-2.4-community-release.html">Red Hat Enterprise Linux 5 (Tikanga)</ulink>
-                                    </para>
-
-                                </listitem>
-                                <listitem>
-                                    <para>
-                                        <ulink url="http://mirror.kolabsys.com/pub/redhat/kolab-2.4/el6/release/i386/repoview/kolab-2.4-community-release.html">Red Hat Enterprise Linux 6 (Santiago)</ulink>
-                                    </para>
-
-                                </listitem>
-
-                            </itemizedlist>
-
-                        </para>
-
-                    </listitem>
-                    <listitem condition="enterprise">
-                        <para>
-                            <literal>kolab-&PRODUCT_VERSION;-enterprise-release</literal>
-                        </para>
-                        <para>
-                            Depending on the version of Red Hat Enterprise Linux, find the <literal>-release</literal> package at:
-                        </para>
-                        <para>
-                            <itemizedlist>
-                                <listitem>
-                                    <para>
-                                        <ulink url="https://mirror.kolabsys.com/redhat/kolab-2.4/el5/release/i386/repoview/kolab-2.4-enterprise-release.html">Red Hat Enterprise Linux 5 (Tikanga)</ulink>
-                                    </para>
-
-                                </listitem>
-                                <listitem>
-                                    <para>
-                                        <ulink url="https://mirror.kolabsys.com/redhat/kolab-2.4/el6/release/i386/repoview/kolab-2.4-enterprise-release.html">Red Hat Enterprise Linux 6 (Santiago)</ulink>
-                                    </para>
-
-                                </listitem>
-
-                            </itemizedlist>
-
-                        </para>
-
-                    </listitem>
-                    <listitem condition="community">
-                        <para>
-                            <literal>kolab-&PRODUCT_VERSION;-community-release-development</literal>
-                        </para>
-                        <para>
-                            You can install the <literal>kolab-&PRODUCT_VERSION;-community-release-development</literal> package using YUM, after having installed the <literal>kolab-&PRODUCT_VERSION;-community-release</literal> package;
-                        </para>
-                        <para>
+                </listitem>
+                <listitem condition="community">
+                    <para>
+                        <literal>kolab-&PRODUCT_VERSION;-community-release-development</literal>
+                    </para>
+                    <para>
+                        You can install the <literal>kolab-&PRODUCT_VERSION;-community-release-development</literal> package using YUM, after having installed the <literal>kolab-&PRODUCT_VERSION;-community-release</literal> package;
+                    </para>
+                    <para>
 
 <screen># <userinput>yum install kolab-&PRODUCT_VERSION;-community-release-development</userinput></screen>
 
-                        </para>
+                    </para>
 
-                    </listitem>
-                    <listitem condition="enterprise">
-                        <para>
-                            <literal>kolab-&PRODUCT_VERSION;-enterprise-release-development</literal>
-                        </para>
-                        <para>
-                            You can install the <literal>kolab-&PRODUCT_VERSION;-enterprise-release-development</literal> package using YUM, after having installed the <literal>kolab-&PRODUCT_VERSION;-enterprise-release</literal> package;
-                        </para>
-                        <para>
+                </listitem>
+                <listitem condition="enterprise">
+                    <para>
+                        <literal>kolab-&PRODUCT_VERSION;-enterprise-release-development</literal>
+                    </para>
+                    <para>
+                        You can install the <literal>kolab-&PRODUCT_VERSION;-enterprise-release-development</literal> package using YUM, after having installed the <literal>kolab-&PRODUCT_VERSION;-enterprise-release</literal> package;
+                    </para>
+                    <para>
 
 <screen># <userinput>yum install kolab-&PRODUCT_VERSION;-enterprise-release-development</userinput></screen>
 
-                        </para>
+                    </para>
 
-                    </listitem>
+                </listitem>
 
-                </orderedlist>
+            </orderedlist>
 
-            </para>
+        </para>
+        <para>
+            Install this package using the following command:
+        </para>
+        <para>
+
+<screen># <userinput>wget http://url/to/rpm</userinput>
+<userinput># yum localinstall --nogpgcheck /path/to/rpm</userinput></screen>
+
+        </para>
 
-        </section>
+    </section>
 
-        <section id="sect-Community_Installation_Guide-Prerequisites-Repository_Package_Stages">
-            <title>Repository Package Stages</title>
-            <formalpara id="form-Community_Installation_Guide-Repository_Package_Stages-Stable_Software">
-                <title>Stable Software</title>
+    <section id="sect-Community_Installation_Guide-Installation_with_RPM_Packages-Red_Hat_Enterprise_Linux">
+        <title>Red Hat Enterprise Linux</title>
+        <para>
+            The <ulink url="http://fedoraproject.org/wiki/EPEL">EPEL</ulink> repository is required for Kolab Groupware on Red Hat Enterprise Linux. Install the EPEL repository using the following procedure:
+        </para>
+        <procedure id="proc-Community_Installation_Guide-Red_Hat_Enterprise_Linux-Installing_the_epel_release_Package">
+            <title>Installing the <application>epel-release</application> Package</title>
+            <step>
                 <para>
-                    Stable software, versions of packages deemed ready for general availability and production environments are distributed through two repositories, <emphasis>release</emphasis> and <emphasis>updates</emphasis>. These repositories are configured on the system, and enabled by default, by installing the <literal condition="community">kolab-&PRODUCT_VERSION;-community-release</literal><literal condition="enterprise">kolab-&PRODUCT_VERSION;-enterprise-release</literal> package;
+                    Depending on the version of Red Hat Enterprise Linux, install the package as it is listed on the following page:
                 </para>
-
-            </formalpara>
-            <formalpara id="form-Community_Installation_Guide-Repository_Package_Stages-Stable_Software_Currently_in_Testing">
-                <title>Stable Software Currently in Testing</title>
                 <para>
-                    The <literal condition="community">kolab-&PRODUCT_VERSION;-community-release</literal><literal condition="enterprise">kolab-&PRODUCT_VERSION;-enterprise-release</literal> package also installs a repository through which upcoming updates currently in their testing phase are distributed. This repository is called <emphasis>updates-testing</emphasis>, and is not enabled by default. Through Kolab Systems and/or community support channels, you may be asked to test an update distributed through the updates-testing repository to see if it fixes a bug you have reported. You would then, typically, temporarily enable the updates-testing repository by supplying the <literal>--enablerepo=kolab-2.4-updates-testing</literal> command-line option to YUM, overriding the system configuration file setting.
+                    <itemizedlist>
+                        <listitem>
+                            <para>
+                                <ulink url="http://download.fedoraproject.org/pub/epel/5/i386/repoview/epel-release.html">Enterprise Linux 5</ulink> (Tikanga)
+                            </para>
+
+                        </listitem>
+                        <listitem>
+                            <para>
+                                <ulink url="http://download.fedoraproject.org/pub/epel/6/i386/repoview/epel-release.html">Enterprise Linux 6</ulink> (Santiago)
+                            </para>
+
+                        </listitem>
+
+                    </itemizedlist>
+
                 </para>
 
-            </formalpara>
-            <formalpara id="form-Community_Installation_Guide-Repository_Package_Stages-Software_Currently_in_Development">
-                <title>Software Currently in Development</title>
+            </step>
+            <step>
                 <para>
-                    Software that is currently in development for the product series you are running (in this case, series &PRODUCT_VERSION;) is available through the so-called <emphasis>development</emphasis> repository. This software is considered unstable. By default, you will not have the package installed that provides the configuration for this repository; the <literal condition="community">kolab-&PRODUCT_VERSION;-community-release-development</literal><literal condition="enterprise">kolab-&PRODUCT_VERSION;-enterprise-release-development</literal> package. Installing this package will cause the <emphasis>development</emphasis> repository to be enabled by default.
+                    Install this package using the following command:
                 </para>
+                <para>
 
-            </formalpara>
+<screen># <userinput>wget http://url/to/rpm</userinput>
+<userinput># yum localinstall --nogpgcheck /path/to/rpm</userinput></screen>
 
-        </section>
+                </para>
 
-        <section id="sect-Community_Installation_Guide-Prerequisites-Using_the_Priorities_YUM_Plugin_to_Avoid_Package_Conflicts">
-            <title>Using the Priorities YUM Plugin to Avoid Package Conflicts</title>
-            <para>
-                Since any given package may, at any time, be or become available to the system through both the Kolab repositories as well as through the regular distribution repositories, to avoid the risk of switching back and forth between the two different versions continuously, by mistake or by accident, we recommend you use the following procedure including employing YUM repository priorities to eliminate the risk of running in such problems in the future.
-            </para>
-            <para>
-                Consider installing the <application>yum-priorities</application> (Enterprise Linux 5) or <application>yum-plugin-priorities</application> package (all other platforms) to avoid such conflicts.
-            </para>
-            <procedure id="proc-Community_Installation_Guide-Using_the_Priorities_YUM_Plugin_to_Avoid_Package_Conflicts-Installing_and_Configuring_YUM_priorities">
-                <title>Installing and Configuring YUM priorities</title>
-                <step>
-                    <title>Enterprise Linux 5</title>
+            </step>
+
+        </procedure>
+
+        <para condition="enterprise">
+            For access to the Enterprise edition, you must have been issued a SSL certificate by Kolab Systems. How to obtain, renew and use the SSL certificate to provide you with access to the Enterprise editions, please read <ulink url="https://support.kolabsys.com/Obtaining,_Renewing_and_Using_a_Client_SSL_Certificate" />.
+        </para>
+        <para>
+            The Kolab software repositories for Red Hat Enterprise Linux ship two so-called <literal>-release</literal> packages:
+        </para>
+        <para>
+            <orderedlist>
+                <listitem condition="community">
+                    <para>
+                        <literal>kolab-&PRODUCT_VERSION;-community-release</literal>
+                    </para>
                     <para>
-                        The <application>yum-priorities</application> is available from the <ulink url="http://fedoraproject.org/wiki/EPEL">EPEL package repository</ulink>. Please install it:
+                        Depending on the version of Enterprise Linux, find the <literal>-release</literal> package at:
                     </para>
                     <para>
+                        <itemizedlist>
+                            <listitem>
+                                <para>
+                                    <ulink url="http://mirror.kolabsys.com/pub/redhat/kolab-2.4/el5/release/i386/repoview/kolab-2.4-community-release.html">Enterprise Linux 5 (Tikanga)</ulink>
+                                </para>
 
-<screen># <userinput>yum install yum-priorities</userinput></screen>
+                            </listitem>
+                            <listitem>
+                                <para>
+                                    <ulink url="http://mirror.kolabsys.com/pub/redhat/kolab-2.4/el6/release/i386/repoview/kolab-2.4-community-release.html">Enterprise Linux 6 (Santiago)</ulink>
+                                </para>
+
+                            </listitem>
+
+                        </itemizedlist>
 
                     </para>
 
-                </step>
-                <step>
-                    <title>Enterprise Linux 6</title>
+                </listitem>
+                <listitem condition="enterprise">
+                    <para>
+                        <literal>kolab-&PRODUCT_VERSION;-enterprise-release</literal>
+                    </para>
                     <para>
-                        The <application>yum-plugin-priorities</application> is available from the <ulink url="http://fedoraproject.org/wiki/EPEL">EPEL package repository</ulink>. Please install it:
+                        Depending on the version of Red Hat Enterprise Linux, find the <literal>-release</literal> package at:
                     </para>
                     <para>
+                        <itemizedlist>
+                            <listitem>
+                                <para>
+                                    <ulink url="https://mirror.kolabsys.com/redhat/kolab-2.4/el5/release/i386/repoview/kolab-2.4-enterprise-release.html">Enterprise Linux 5 (Tikanga)</ulink>
+                                </para>
 
-<screen># <userinput>yum install yum-plugin-priorities</userinput></screen>
+                            </listitem>
+                            <listitem>
+                                <para>
+                                    <ulink url="https://mirror.kolabsys.com/redhat/kolab-2.4/el6/release/i386/repoview/kolab-2.4-enterprise-release.html">Enterprise Linux 6 (Santiago)</ulink>
+                                </para>
+
+                            </listitem>
+
+                        </itemizedlist>
 
                     </para>
 
-                </step>
-                <step>
-                    <title>Fedora</title>
+                </listitem>
+                <listitem condition="community">
+                    <para>
+                        <literal>kolab-&PRODUCT_VERSION;-community-release-development</literal>
+                    </para>
                     <para>
-                        The <application>yum-plugin-priorities</application> is available in the standard repositories. Please install it:
+                        You can install the <literal>kolab-&PRODUCT_VERSION;-community-release-development</literal> package using YUM, after having installed the <literal>kolab-&PRODUCT_VERSION;-community-release</literal> package;
                     </para>
                     <para>
 
-<screen># <userinput>yum install yum-plugin-priorities</userinput></screen>
+<screen># <userinput>yum install kolab-&PRODUCT_VERSION;-community-release-development</userinput></screen>
 
                     </para>
 
-                </step>
-                <step>
+                </listitem>
+                <listitem condition="enterprise">
+                    <para>
+                        <literal>kolab-&PRODUCT_VERSION;-enterprise-release-development</literal>
+                    </para>
+                    <para>
+                        You can install the <literal>kolab-&PRODUCT_VERSION;-enterprise-release-development</literal> package using YUM, after having installed the <literal>kolab-&PRODUCT_VERSION;-enterprise-release</literal> package;
+                    </para>
                     <para>
-                        The repositories that have been installed using the <literal condition="community">kolab-&PRODUCT_VERSION;-community-release</literal><literal condition="enterprise">kolab-&PRODUCT_VERSION;-enterprise-release</literal> package(s) have a pre-configured priority of <code>50</code>. The default repository priority is <code>99</code>. This will set the correct priorities, unless you have repositories configured other than the base operating system repositories (not including 'addons' and 'extras' on CentOS platforms), EPEL and the Kolab Groupware repositories. Should the system happen to already make use of YUM priorities, please make sure the Kolab repositories have the appropriate priority.
+
+<screen># <userinput>yum install kolab-&PRODUCT_VERSION;-enterprise-release-development</userinput></screen>
+
                     </para>
 
-                </step>
+                </listitem>
+
+            </orderedlist>
 
-            </procedure>
+        </para>
+
+    </section>
+
+    <section id="sect-Community_Installation_Guide-Installation_with_RPM_Packages-Repository_Package_Stages">
+        <title>Repository Package Stages</title>
+        <formalpara id="form-Community_Installation_Guide-Repository_Package_Stages-Stable_Software">
+            <title>Stable Software</title>
+            <para>
+                Stable software, versions of packages deemed ready for general availability and production environments are distributed through two repositories, <emphasis>release</emphasis> and <emphasis>updates</emphasis>. These repositories are configured on the system, and enabled by default, by installing the <literal condition="community">kolab-&PRODUCT_VERSION;-community-release</literal><literal condition="enterprise">kolab-&PRODUCT_VERSION;-enterprise-release</literal> package;
+            </para>
 
+        </formalpara>
+        <formalpara id="form-Community_Installation_Guide-Repository_Package_Stages-Stable_Software_Currently_in_Testing">
+            <title>Stable Software Currently in Testing</title>
+            <para>
+                The <literal condition="community">kolab-&PRODUCT_VERSION;-community-release</literal><literal condition="enterprise">kolab-&PRODUCT_VERSION;-enterprise-release</literal> package also installs a repository through which upcoming updates currently in their testing phase are distributed. This repository is called <emphasis>updates-testing</emphasis>, and is not enabled by default. Through Kolab Systems and/or community support channels, you may be asked to test an update distributed through the updates-testing repository to see if it fixes a bug you have reported. You would then, typically, temporarily enable the updates-testing repository by supplying the <literal>--enablerepo=kolab-2.4-updates-testing</literal> command-line option to YUM, overriding the system configuration file setting.
+            </para>
 
-        </section>
+        </formalpara>
+        <formalpara id="form-Community_Installation_Guide-Repository_Package_Stages-Software_Currently_in_Development">
+            <title>Software Currently in Development</title>
+            <para>
+                Software that is currently in development for the product series you are running (in this case, series &PRODUCT_VERSION;) is available through the so-called <emphasis>development</emphasis> repository. This software is considered unstable. By default, you will not have the package installed that provides the configuration for this repository; the <literal condition="community">kolab-&PRODUCT_VERSION;-community-release-development</literal><literal condition="enterprise">kolab-&PRODUCT_VERSION;-enterprise-release-development</literal> package. Installing this package will cause the <emphasis>development</emphasis> repository to be enabled by default.
+            </para>
 
+        </formalpara>
 
     </section>
 





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