Installing Joomla Language Pack

I have faced some problems installing a language pack for Joomla.

These are the actions to remind:

1.- Set “language” folder security from 644 to 777

2.- Set “administrator/language” folder security from 644 to 777

3.- Set “tmp” folder security from 644 to 755

4.- change in “configuration.php” from:

var $tmp_path = ‘/home/xxx/domains/xxx.com.es/public_html/xxx/tmp’;

to:

var $tmp_path = ‘/tmp’;

then, it worked