Доки говоришь читал??
http://saratov.lug.ru/cgi-bin/doc.cg...ocs=77&start=0
Код:

5. Устанавливается русская локаль: в /etc/profile.d/lang.sh
#!/bin/sh
# Set the system locale (default C is the same as en_US):
#export LANG=C
export LANG=ru_RU.koi8r
# This setting has been reported to fix some cut and paste
# problems with GTK2. If you experience this, try it:
#export LANG=en_US.ISO8859-1
и /etc/profile.d/lang.сsh:
#!/bin/csh
# Set the system locale (default C is the same as en_US):
#setenv LANG C
setenv LANG ru_RU.koi8r
# This setting has been reported to fix some cut and paste
# problems with GTK2. If you experience this, try it:
# setenv LANG en_US.ISO8859-1
Ну и почему ж у вас LANG пустой?