diff --git a/3dparty/MDB2/Schema.php b/3dparty/MDB2/Schema.php
index a25a625440..25818460a6 100644
--- a/3dparty/MDB2/Schema.php
+++ b/3dparty/MDB2/Schema.php
@@ -1338,15 +1338,15 @@ class MDB2_Schema extends PEAR
 
             if ($dbExists) {
                 $this->db->debug('Database already exists: ' . $db_name, __FUNCTION__);
-                if (!empty($dbOptions)) {
-                    $errorcodes = array(MDB2_ERROR_UNSUPPORTED, MDB2_ERROR_NO_PERMISSION);
-                    $this->db->expectError($errorcodes);
-                    $result = $this->db->manager->alterDatabase($db_name, $dbOptions);
-                    $this->db->popExpect();
-                    if (PEAR::isError($result) && !MDB2::isError($result, $errorcodes)) {
-                        return $result;
-                    }
-                }
+//                 if (!empty($dbOptions)) {
+//                     $errorcodes = array(MDB2_ERROR_UNSUPPORTED, MDB2_ERROR_NO_PERMISSION);
+//                     $this->db->expectError($errorcodes);
+//                     $result = $this->db->manager->alterDatabase($db_name, $dbOptions);
+//                     $this->db->popExpect();
+//                     if (PEAR::isError($result) && !MDB2::isError($result, $errorcodes)) {
+//                         return $result;
+//                     }
+//                 }
                 $create = false;
             } else {
                 $this->db->expectError(MDB2_ERROR_UNSUPPORTED);
diff --git a/lib/database.php b/lib/database.php
index 970e43c122..97651ccf50 100644
--- a/lib/database.php
+++ b/lib/database.php
@@ -239,7 +239,7 @@ class OC_DB {
 
 		// read file
 		$content = file_get_contents( $file );
-
+		
 		// Make changes and save them to a temporary file
 		$file2 = tempnam( sys_get_temp_dir(), 'oc_db_scheme_' );
 		$content = str_replace( '*dbname*', $CONFIG_DBNAME, $content );
@@ -247,8 +247,8 @@ class OC_DB {
 		file_put_contents( $file2, $content );
 
 		// Try to create tables
-		$definition = @self::$schema->parseDatabaseDefinitionFile( $file2 );
-
+		$definition = self::$schema->parseDatabaseDefinitionFile( $file2 );
+		
 		// Delete our temporary file
 		unlink( $file2 );
 
@@ -256,7 +256,10 @@ class OC_DB {
 		if( $definition instanceof MDB2_Schema_Error ){
 			die( $definition->getMessage().': '.$definition->getUserInfo());
 		}
-		$ret=@self::$schema->createDatabase( $definition );
+		if(OC_CONFIG::getValue('dbtype','sqlite')=='sqlite'){
+			$definition['overwrite']=true;//always overwrite for sqlite
+		}
+		$ret=self::$schema->createDatabase( $definition );
 
 		// Die in case something went wrong
 		if( $ret instanceof MDB2_Error ){
diff --git a/lib/installer.php b/lib/installer.php
index 3be3cb44f2..14e2be6600 100644
--- a/lib/installer.php
+++ b/lib/installer.php
@@ -25,19 +25,19 @@ class OC_INSTALLER{
 		};
 		if($dbtype=='mysql'){//mysql needs more config options
 			if(empty($options['dbuser'])){
-				$error[]=array('error'=>'database user directory not set');
+				$error[]=array('error'=>'database user not set');
 			};
 			if(empty($options['dbpass'])){
-				$error[]=array('error'=>'database password directory not set');
+				$error[]=array('error'=>'database password not set');
 			};
 			if(empty($options['dbname'])){
-				$error[]=array('error'=>'database name directory not set');
+				$error[]=array('error'=>'database name not set');
 			};
 			if(empty($options['dbhost'])){
-				$error[]=array('error'=>'database host directory not set');
+				$error[]=array('error'=>'database host not set');
 			};
 			if(!isset($options['dbtableprefix'])){
-				$error[]=array('error'=>'database table prefix directory not set');
+				$error[]=array('error'=>'database table prefix not set');
 			};
 		}
 		if(count($error)==0){ //no errors, good
@@ -59,9 +59,9 @@ class OC_INSTALLER{
 				OC_CONFIG::setValue('dbtableprefix',$dbtableprefix);
 				
 				//check if the database user has admin right
-				$connection=mysql_connect($dbhost, $dbuser, $dbpass);
+				$connection=@mysql_connect($dbhost, $dbuser, $dbpass);
 				if(!$connection) {
-					$error[]=array('error'=>'mysql username and/or password not valid','you need to enter either an existing account, or the administrative account if you wish to create a new user for ownCloud');
+					$error[]=array('error'=>'mysql username and/or password not valid','hint'=>'you need to enter either an existing account, or the administrative account if you wish to create a new user for ownCloud');
 				}else{
 					$query="SELECT user FROM mysql.user WHERE user='$dbuser'";//this should be enough to check for admin rights in mysql
 					if(mysql_query($query,$connection)){
@@ -79,26 +79,27 @@ class OC_INSTALLER{
 						//create the database
 						self::createDatabase($dbname,$dbuser,$connection);
 					}
+					//fill the database if needed
+					$query="SELECT * FROM $dbname.{$dbtableprefix}users";
+					$result = mysql_query($query,$connection);
+					if (!$result) {
+						OC_DB::createDbFromStructure('db_structure.xml');
+					}
+					mysql_close($connection);
 				}
-				//fill the database if needed
-				$query="SELECT * FROM $dbname.{$dbtableprefix}users";
-				$result = mysql_query($query,$connection);
-				if (!$result) {
-					OC_DB::createDbFromStructure('db_structure.xml');
-				}
-				mysql_close($connection);
 			}else{
 				//in case of sqlite, we can always fill the database
 				OC_DB::createDbFromStructure('db_structure.xml');
 			}
-			
-			//create the user and group
-			OC_USER::createUser($username,$password);
-			OC_GROUP::createGroup('admin');
-			OC_GROUP::addToGroup($username,'admin');
-			
-			//and we are done
-			OC_CONFIG::setValue('installed',true);
+			if(count($error)==0){
+				//create the user and group
+				OC_USER::createUser($username,$password);
+				OC_GROUP::createGroup('admin');
+				OC_GROUP::addToGroup($username,'admin');
+				
+				//and we are done
+				OC_CONFIG::setValue('installed',true);
+			}
 		}
 		return $error;
 	}