ошибки локализации

сделал
export LANG=ru_RU:KOI8-R
#locale
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=ru_RU:KOI8-R
LC_CTYPE="ru_RU:KOI8-R"
LC_NUMERIC="ru_RU:KOI8-R"
LC_TIME="ru_RU:KOI8-R"
LC_COLLATE="ru_RU:KOI8-R"
LC_MONETARY="ru_RU:KOI8-R"
LC_MESSAGES="ru_RU:KOI8-R"
LC_PAPER="ru_RU:KOI8-R"
LC_NAME="ru_RU:KOI8-R"
LC_ADDRESS="ru_RU:KOI8-R"
LC_TELEPHONE="ru_RU:KOI8-R"
LC_MEASUREMENT="ru_RU:KOI8-R"
LC_IDENTIFICATION="ru_RU:KOI8-R"
LC_ALL=



и ещё Warning: locale not supported by C library, locale unchangedется

:\

что делать?