--- doc/build/ubuntu16LTS_install.frag	2021/03/17 04:47:44	1.6
+++ doc/build/ubuntu16LTS_install.frag	2024/08/08 21:22:21	1.8
@@ -138,13 +138,29 @@ sudo apt-get update
 <p> Execute: </p>
 <pre>
 sudo apt-get install python-software-properties
-sudo apt-add-repository 'deb http://install.loncapa.org/ubuntu xenial main'
+sudo add-apt-repository 'deb http://install.loncapa.org/ubuntu xenial main'
 </pre>
 <p>
 You can display which repositories are currently enabled by using:
 </p>
 <pre>
-sudo apt-cache policy
+grep '^deb ' /etc/apt/sources.list |grep ' xenial '
+</pre>
+<p>The output should contain:</p>
+<pre>
+deb http://us.archive.ubuntu.com/ubuntu xenial main
+deb http://us.archive.ubuntu.com/ubuntu xenial universe
+deb http://install.loncapa.org/ubuntu xenial main
+</pre>
+<p>If the Ubuntu universe repository is absent it can be added using:</p>
+<pre>
+sudo add-apt-repository universe
+</pre>
+<p>If other Ubuntu repositories, e.g., restricted and multiverse are enabled,
+you can disable them, as they are not needed for LON-CAPA, by using:</p>
+<pre>
+sudo add-apt-repository --remove restricted
+sudo add-apt-repository --remove multiverse
 </pre>
 <h3>Install prerequisites</h3>
 <p> Execute: </p>
@@ -205,7 +221,7 @@ used to check the configuration of a sys
 </p>
 <p>
 The script will analyze your system to determine which actions are recommended.  The script will then prompt you to choose the actions you would like taken.
-Once a choice has been entered for all nine possible actions, required changes will be made.
+Once a choice has been entered for all ten possible actions, required changes will be made.
 </p>
 <p>The possible actions are:
 <ul>
@@ -214,6 +230,7 @@ Once a choice has been entered for all n
 <li>Set-up the MySQL database</li>
 <li>Set-up MySQL permissions</li>
 <li>Configure Apache web server</li>
+<li>Configure systemd security settings for Apache web server</li>
 <li>Configure start-up of services</li>
 <li>Check firewall settings</li>
 <li>Stop services not used by LON-CAPA,<br>
@@ -319,7 +336,10 @@ coordinator.  Congratulations!
 <h2>If things aren't working right</h2>
 <p>
 If you've followed the steps above and the server doesn't start or you think 
-there's something wrong, please send a <a href="http://help.loncapa.org/help">help request</a> to the MSU LON-CAPA group.  If there were errors in installation of the dependency .deb packages or errors during the
+there's something wrong, please contact the LON-CAPA helpdesk.
+Installation/update support is available from: helpdesk at loncapa.org
+(replace " at " with @).
+If there were errors in installation of the dependency .deb packages or errors during the
 automatic setup, please send us as much information as possible.
 If some part of this document is unclear please let us know.
 </p>