To start a session in a different language, perform the following actions.
On the login dialog, choose Options -> Session. Choose the GNOME Desktop from the list of available desktop environments.
On the login dialog, choose Options -> Language.
Choose the language group that includes the language that you want.
Choose a language.
Log in.
Your system administrator sets the default language for your system. The Options menu on the Login Manager dialog enables you to access other languages. When you choose a language in the Options menu, your system sets the LANG variable for your session. The system restores the default language at the end of the session.