It's not that the strings are untranslated, it's just the small terminal is not running in the user's locale. Therefore any strings outputed by e.g. apt-get update / install are all in English instead of the user's locale.
It's not that the strings are untranslated, it's just the small terminal is not running in the user's locale. Therefore any strings outputed by e.g. apt-get update / install are all in English instead of the user's locale.