--- doc/build/scientific7_install.frag	2015/05/30 23:45:00	1.1
+++ doc/build/scientific7_install.frag	2019/12/03 00:36:47	1.2
@@ -110,6 +110,12 @@ This tool should be used to configure th
 
 <h2>4. <a name="upd">Update your system</a></h2>
 <p>
+Enable access to the EPEL repository
+</p>
+<pre>
+yum install epel-release
+</pre>
+<p>
 Update your system to the latest versions of the system software using yum.
 </p>
 <pre>
@@ -132,6 +138,25 @@ mv /etc/yum.conf /etc/yum.conf.backup
 cp scientific7_loncapa_yum.conf /etc/yum.conf
 yum update
 </pre>
+<p>
+Verify the required repositories are enabled:
+</p>
+<pre>
+yum repolist enabled
+</pre>
+<p>
+The list of enabled repos should be as follows:
+</p>
+<table style="border: 0px; border-collapse: collapse;">
+<tr><th>repo id</th><th>repo name</th></tr>
+<tr><td>epel/x86_64</td><td>Extra Packages for Enterprise Linux 7 - x86_64</td></tr>
+<tr><td>loncapa-updates-basearca/7/x86_64</td><td>Scientific Linux 7 LON-CAPA x86_64 Updates</td></tr>
+<tr><td>loncapa-updates-noarch/7</td><td>Scientific Linux 7 LON-CAPA noarch Updates</td></tr>
+<tr><td>sl/x86_64</td><td>Scientific Linux 7x - x86_64</td></tr>
+<tr><td>sl-extras/x86_64</td><td>Scientific Linux Extras- x86_64</td></tr>
+<tr><td>sl-fastbugs/x86_64</td><td>Scientific Linux 7x - x86_64 - bugfix updates</td></tr>
+<tr><td>sl-security/x86_64</td><td>Scientific Linux 7x - x86_64 - security updates</td></tr>
+</table>
 
 <h2>5. <a name="ilc">Installing LON-CAPA</a></h2>
 <h3>Import the LON-CAPA encryption key</h3>