diff --git a/install/lang/rm_surs/moodle.php b/install/lang/rm_surs/moodle.php
new file mode 100644
index 00000000000..698cf50c69b
--- /dev/null
+++ b/install/lang/rm_surs/moodle.php
@@ -0,0 +1,36 @@
+<?php
+
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Automatically generated strings for Moodle 2.3dev installer
+ *
+ * Do not edit this file manually! It contains just a subset of strings
+ * needed during the very first steps of installation. This file was
+ * generated automatically by export-installer.php (which is part of AMOS
+ * {@link http://docs.moodle.org/dev/Languages/AMOS}) using the
+ * list of strings defined in /install/stringnames.txt.
+ *
+ * @package   installer
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$string['language'] = 'Lungatg';
+$string['next'] = 'Proxim';
+$string['previous'] = 'Precedent';
+$string['reload'] = 'Cargar aunc ina gada';
diff --git a/install/lang/vi/admin.php b/install/lang/vi/admin.php
index 31767ca7c32..54ba3abe3b5 100644
--- a/install/lang/vi/admin.php
+++ b/install/lang/vi/admin.php
@@ -30,5 +30,9 @@
 
 defined('MOODLE_INTERNAL') || die();
 
+$string['clianswerno'] = 'n';
+$string['cliansweryes'] = 'y';
+$string['cliincorrectvalueerror'] = 'Lỗi, giá trị không đúng "{$a->value}" for "{$a->option}"';
+$string['cliincorrectvalueretry'] = 'Giá trị không đúng, vui lòng thử lại';
 $string['environmentrequireinstall'] = 'cần phải được cài hay kích hoạt.';
 $string['environmentrequireversion'] = 'Cần phiên bản {$a->needed} trong khi bạn đang dùng {$a->current}';