Check to see what locales are currently installed on your system by typing:
locale -a
Check to see what languages are installed on your system by typing:
/usr/sbin/swlist -l fileset International
Refer to the locale listing in Appendix A in this document for a description of the locales.
If the locale is already installed, go to the section “Managing the LANG Environment Variable”.
If the locale is not installed, you will have to load it from the Core OS media using the SD swinstall command.