--- doc/install/linux/install.pl	2019/05/26 22:19:35	1.53
+++ doc/install/linux/install.pl	2019/07/02 19:40:35	1.55
@@ -77,7 +77,7 @@ if (!open(LOG,">>loncapa_install.log"))
           &mt('Stopping execution.')."\n";
     exit;
 } else {
-    print LOG '$Id: install.pl,v 1.53 2019/05/26 22:19:35 raeburn Exp $'."\n";
+    print LOG '$Id: install.pl,v 1.55 2019/07/02 19:40:35 raeburn Exp $'."\n";
 }
 
 #
@@ -166,7 +166,18 @@ sub get_user_selection {
 sub get_distro {
     my ($distro,$gotprereqs,$updatecmd,$packagecmd,$installnow,$unknown);
     $packagecmd = '/bin/rpm -q LONCAPA-prerequisites ';
-    if (-e '/etc/redhat-release') {
+    if (-e '/etc/oracle-release') {
+        open(IN,'</etc/oracle-release');
+        my $versionstring=<IN>;
+        chomp($versionstring);
+        close(IN);
+        if ($versionstring =~ /^Oracle Linux Server release (\d+)/) {
+            my $version = $1;
+            $distro = 'oracle'.$1;
+            $updatecmd = 'yum install LONCAPA-prerequisites';
+            $installnow = 'yum -y install LONCAPA-prerequisites';
+        }
+    } elsif (-e '/etc/redhat-release') {
         open(IN,'</etc/redhat-release');
         my $versionstring=<IN>;
         chomp($versionstring);
@@ -196,6 +207,10 @@ sub get_distro {
             $distro = 'rhes'.$1;
             $updatecmd = 'yum install LONCAPA-prerequisites';
             $installnow = 'yum -y install LONCAPA-prerequisites';
+        } elsif ($versionstring =~ /Red Hat Enterprise Linux release (\d+)/) {
+            $distro = 'rhes'.$1;
+            $updatecmd = 'dnf install LONCAPA-prerequisites';
+            $installnow = 'dnf -y install LONCAPA-prerequisites';
         } elsif ($versionstring =~ /CentOS(?:| Linux) release (\d+)/) {
             $distro = 'centos'.$1;
             $updatecmd = 'yum install LONCAPA-prerequisites';
@@ -308,7 +323,7 @@ sub get_distro {
                 $unknown = 1;
             }
         } else {
-            print &mt('Unknown installation: expecting a debian, ubuntu, suse, sles, redhat, fedora or scientific linux system.')."\n";
+            print &mt('Unknown installation: expecting a debian, ubuntu, suse, sles, redhat, fedora, scientific linux, or oracle linux system.')."\n";
         }
     }
     return ($distro,$packagecmd,$updatecmd,$installnow);
@@ -466,8 +481,12 @@ sub check_locale {
                                'sudo update-locale LANG=en_US.UTF-8';
                 } elsif ($distro =~ /^(suse|sles)/) {
                     $command = 'yast language'; 
-                } else {
+                } elsif (-e '/usr/bin/system-config-language') {
                     $command = 'system-config-language';
+                } elsif (-e '/usr/bin/localectl') {
+                    $command = 'localectl set-locale en_US.UTF-8';
+                } else {
+                    $command = 'No standard command found';
                 }
             }
             last;
@@ -739,6 +758,9 @@ sub chkconfig {
             $uses_systemctl{'cups'} = 1;
             $daemon{'mysql'} = 'mariadb';
         }
+        if ($version >= 8) {
+            $daemon{'ntp'} = 'chronyd';
+        }
     }
     my $nocheck;
     if (! -x $checker_bin) {