There are no additional languages available on this system

Способы
# dpkg-reconfigure locales

# apt purge locales
# apt purge language-pack-pl
# apt purge language-pack-ru
# apt install locales
# apt install language-pack-pl
# apt install language-pack-ru

# locale-gen
не помогают.

Установленные пакеты локализации:
# aptitude search language-pack- | grep '^i' | grep -P '\-pl|\-ru|\-en'
i  language-pack-en - translation updates for language English
i  language-pack-en-base - translations for language English
i  language-pack-gnome-en - GNOME translation updates for language English
i A language-pack-gnome-en-base - GNOME translations for language English
i  language-pack-gnome-pl - GNOME translation updates for language Polish
i A language-pack-gnome-pl-base - GNOME translations for language Polish
i  language-pack-gnome-ru - GNOME translation updates for language Russian
i  language-pack-gnome-ru-base - GNOME translations for language Russian
i  language-pack-kde-en - KDE translation meta package for language en_GB
i  language-pack-kde-pl - KDE translation meta package for language pl
i  language-pack-kde-ru - KDE translation meta package for language ru
i A language-pack-pl - translation updates for language Polish
i A language-pack-pl-base - translations for language Polish
i  language-pack-ru - translation updates for language Russian
i  language-pack-ru-base - translations for language Russian