hi,
by default only EN US is installed.
First install your language, assuming FR:
# localedef -i fr_FR -f UTF-8 fr_FR.UTF-8
Then, edit /etc/locales
and add something like:fr_FR.ISO-8859-1 ISO-8859-1
fr_FR.UTF-8 UTF-8
third, run locale-gen.
last, edit /etc/profile and export LANG in this file. (not .bash_profile)
export LANG=fr_FR.ISO-8859-15
WARNING: ovios-shell doesn't work with a non POSIX language by default, so you must run this before :
# sed -i '20i unset LANG' /usr/bin/os
this unsets the LANG variable in the ovios shell.