diff --git a/install/lang/es_mx/admin.php b/install/lang/es_mx/admin.php
new file mode 100644
index 00000000000..c50bbe74117
--- /dev/null
+++ b/install/lang/es_mx/admin.php
@@ -0,0 +1,33 @@
+<?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();
+
+$string['environmentrequireinstall'] = 'debe estar instalado y activado';
diff --git a/install/lang/es_mx/install.php b/install/lang/es_mx/install.php
new file mode 100644
index 00000000000..a3586f021e3
--- /dev/null
+++ b/install/lang/es_mx/install.php
@@ -0,0 +1,38 @@
+<?php
+
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Automatically generated strings for Moodle 2.3dev installer
+ *
+ * Do not edit this file manually! It contains just a subset of strings
+ * needed during the very first steps of installation. This file was
+ * generated automatically by export-installer.php (which is part of AMOS
+ * {@link http://docs.moodle.org/dev/Languages/AMOS}) using the
+ * list of strings defined in /install/stringnames.txt.
+ *
+ * @package   installer
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$string['databasehost'] = 'host de la Base de Datos';
+$string['environmentsub2'] = 'Cada versión de Moodle tiene algún requisito mínimo de la versión de PHP y un número obligatorio de extensiones de PHP. Una comprobación del entorno completo se realiza antes de cada instalación y actualización. Por favor, póngase en contacto con el administrador del servidor si no sabe cómo instalar la nueva versión o habilitar las extensiones PHP.';
+$string['errorsinenvironment'] = '¡La comprobación del entorno falló!';
+$string['welcomep20'] = 'Si está viendo esta página es porque ha podido ejecutar el paquete <strong>{$a->packname} {$a->packversion}</strong> en su computadora. !Enhorabuena!';
+$string['welcomep30'] = 'Esta versión de <strong>{$a->installername}</strong> incluye las aplicaciones necesarias para que <strong>Moodle</strong> funcione en su computadora principalmente:';
+$string['welcomep60'] = 'Las siguientes páginas le guiarán a través de algunos sencillos pasos para configurar y ajustar <strong>Moodle</strong> en su computadora. Puede utilizar los valores por defecto sugeridos o, de forma opcional, modificarlos para que se ajusten a sus necesidades.';