diff -ru glpi.cron/install/install.php glpi/install/install.php
--- glpi.cron/install/install.php	2011-07-21 20:50:28.000000000 +0200
+++ glpi/install/install.php	2011-08-22 19:17:20.468262531 +0200
@@ -357,6 +357,15 @@
       $query = "UPDATE `glpi_users`
                 SET `language` = NULL";
       $DB->query($query) or die("4203 ".$LANG['update'][90].$DB->error());
+      
+      // RPM provides a good system cron
+      $query = "UPDATE `glpi_crontasks` SET `mode`=2 WHERE `mode`=1";
+      $DB->query($query)
+      or die("RPM update of glpi_crontasks. " . $LANG['update'][90] . $DB->error());
+
+      $query = "UPDATE `glpi_configs` SET `cron_limit` = '3'";
+      $DB->query($query)
+      or die("RPM update of glpi_configs. " . $LANG['update'][90] . $DB->error());
    }
 
 
diff -ru glpi.cron/install/update.php glpi/install/update.php
--- glpi.cron/install/update.php	2011-07-21 20:50:28.000000000 +0200
+++ glpi/install/update.php	2011-08-22 19:18:48.485449461 +0200
@@ -762,6 +762,11 @@
    $plugin = new Plugin();
    $plugin->unactivateAll();
 
+   // RPM provides a good system cron
+   $query = "UPDATE `glpi_crontasks` SET `mode`=2 WHERE `mode`=1";
+   $DB->query($query)
+   or die("RPM update of glpi_crontasks. " . $LANG['update'][90] . $DB->error());
+
    echo "<h3>".$LANG['update'][139]."</h3>";
 
    optimize_tables($migration);
Seulement dans glpi/install/: update.php~