--- loncom/debugging_tools/modify_config_files.pl	2019/10/02 22:28:24	1.16
+++ loncom/debugging_tools/modify_config_files.pl	2021/03/13 18:10:00	1.17
@@ -2,7 +2,7 @@
 #
 # The LearningOnline Network
 #
-# $Id: modify_config_files.pl,v 1.16 2019/10/02 22:28:24 raeburn Exp $
+# $Id: modify_config_files.pl,v 1.17 2021/03/13 18:10:00 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -233,6 +233,10 @@ if ($dist =~ /^fedora(\d+)$/) {
                                         regexp => '\s*deb\s+'.$loninst_re.'/ubuntu/\s+bionic\s+main',
                                         text   => "deb $loninst/ubuntu/ bionic main",
                                        },
+                           ubuntu20 => {
+                                        regexp => '\s*deb\s+'.$loninst_re.'/ubuntu/\s+focal\s+main',
+                                        text   => "deb $loninst/ubuntu/ focal main",
+                                       },
                          );
     my $apt_status;
     if (defined($apt_get_source{$dist})) {