1. Добавляем в конфиг ядра строки:

options TEKEN_UTF8
options TEKEN_XTERM

2. ee /etc/login.conf:

russian|Russian Users Accounts:
:charset=UTF-8:
:lang=ru_RU.UTF-8:
:tc=default:

Создаём хэш для login.conf:

cap_mkdb /etc/login.conf

3. ee /etc/csh.cshrc

setenv LANG ru_RU.UTF-8
setenv LC_CTYPE ru_RU.UTF-8
setenv LC_COLLATE POSIX
setenv LC_ALL ru_RU.UTF-8

4. ee /etc/profile:

LANG="ru_RU.UTF-8"; export LANG
LC_CTYPE="ru_RU.UTF-8"; export LC_CTYPE
LC_COLLATE="POSIX"; export LC_COLLATE
LC_ALL="ru_RU.UTF-8"; export LC_ALL

5. ee /root/.cshrc:

setenv LANG C
setenv LC_CTYPE C
setenv LC_COLLATE POSIX
setenv LC_ALL C

6. Меняем драйвер консоли ‘cons25′ на ‘xterm’ в /etc/ttys
7. cd /usr/ports/converters/convmv && make install clean

convmv -f koi8-r -t utf-8 /file/path/* --notest -r