Index: branches/RC/core/kernel/db/db_connection.php
===================================================================
diff -u -N -r10509 -r10921
--- branches/RC/core/kernel/db/db_connection.php	(.../db_connection.php)	(revision 10509)
+++ branches/RC/core/kernel/db/db_connection.php	(.../db_connection.php)	(revision 10921)
@@ -212,7 +212,7 @@
 		function Connect($host, $user, $pass, $db, $force_new = false)
 		{
 			$func = $this->getMetaFunction('connect');
-			$this->connectionID = $func($host, $user, $pass, $force_new) or trigger_error("Database connection failed, please check your connection settings", E_USER_ERROR);
+			$this->connectionID = $func($host, $user, $pass, $force_new) or trigger_error("Database connection failed, please check your connection settings", defined('IS_INSTALL') && IS_INSTALL ? E_USER_WARNING : E_USER_ERROR);
 			if ($this->connectionID) {
 				if (defined('DBG_SQL_MODE')) {
 					$this->Query('SET sql_mode = \''.DBG_SQL_MODE.'\'');
@@ -225,6 +225,11 @@
 				$this->setDB($db);
 				$this->showError();
 			}
+			else {
+				// simulate error, becase php mysql client doesn't provide such information
+				$this->errorCode = 2003;
+				$this->errorMessage = "Can't connect to MySQL server on '$host' (113)";
+			}
 		}
 
 		function ReConnect($host, $user, $pass, $db, $force_new = false)