--- doc/build/scientific6_install.frag	2015/05/30 23:44:10	1.7
+++ doc/build/scientific6_install.frag	2020/11/02 20:27:04	1.9
@@ -109,6 +109,12 @@ 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>
@@ -131,6 +137,25 @@ mv /etc/yum.conf /etc/yum.conf.backup
 cp scientific6_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 (where $releasever = 6.10 and $basearch = x86_64 or i386):
+</p>
+<table style="border: 0px; border-collapse: collapse;">
+<tr><th>repo id</th><th>repo name</th></tr>
+<tr><td>epel</td><td>Extra Packages for Enterprise Linux 6 - $basearch</td></tr>
+<tr><td>loncapa-updates-basearch</td><td>Scientific Linux $releasever LON-CAPA $basearch Updates</td></tr>
+<tr><td>loncapa-updates-noarch</td><td>Scientific Linux $releasever LON-CAPA noarch Updates</td></tr>
+<tr><td>sl</td><td>Scientific Linux $releasever - $basearch</td></tr>
+<tr><td>sl-security</td><td>Scientific Linux $releasever - $basearch - security updates</td></tr>
+<tr><td>sl6x</td><td>Scientific Linux 6x - $basearch</td></tr>
+<tr><td>sl6x-security</td><td>Scientific Linux 6x - $basearch - security updates</td></tr>
+</table>
 
 <h2>5. <a name="ilc">Installing LON-CAPA</a></h2>
 <h3>Import the LON-CAPA encryption key</h3>