--- doc/build/ubuntu18LTS_install.frag	2020/05/02 01:04:18	1.2
+++ doc/build/ubuntu18LTS_install.frag	2021/01/09 03:26:20	1.3
@@ -55,7 +55,7 @@ DHCP is <em>not</em> supported.
 
 <h2>3. <a name="lin">Ubuntu 18.04 LTS installation</a></h2>
 <p>
-Installing Ubuntu Linux is easy.
+Installing Ubuntu Linux is straightforward.
 Documentation is available from
 <a href="https://help.ubuntu.com/community/Installation">https://help.ubuntu.com/community/Installation/</a>
 Most of the installation screens are self explanatory.
@@ -125,20 +125,24 @@ sudo apt-get upgrade
 <p>
 If kernel packages were updated, reboot your system before continuing with the installation.
 </p>
-<p>
-Add LON-CAPA ubuntu repository to your /etc/apt/sources.list file. 
-</p>
-<pre>
-sudo apt-get install software-properties-common
-sudo apt-add-repository 'deb http://install.loncapa.org/ubuntu bionic main'
-</pre>
 <h2>5. <a name="ilc">Installing LON-CAPA</a></h2>
 <h3>Import the LON-CAPA encryption key</h3>
 <pre>
 wget http://install.loncapa.org/versions/ubuntu/APT-GPG-KEY-loncapa.asc
 sudo apt-get install add-apt-key gpg
 sudo apt-key add APT-GPG-KEY-loncapa.asc
-sudo apt-get update
+</pre>
+<h3>Add LON-CAPA ubuntu repository to /etc/apt/sources.list</h3>
+<p> Execute: </p>
+<pre>
+sudo apt-get install software-properties-common
+sudo apt-add-repository 'deb http://install.loncapa.org/ubuntu bionic main'
+</pre>
+<p>
+You can display which repositories are currently enabled by using:
+</p>
+<pre>
+sudo apt-cache policy
 </pre>
 <h3>Install prerequisites</h3>
 <p> Execute: </p>