If installing Debian choosing Norwegian Bokmål as your system language
the other Scandinavian langiages are defined as fallback languages if
translations are missing:
LANGUAGE="nb_NO:nb:no_NO:no:nn_NO:nn:da:sv:en"

Allthough very similar the other scandinavian languages are not suited
as fallbacks for technical texts. I usually have to prepend LANG=C to
whichever command I am running in these cases in order to understand the
exact details of the messages. I suggest removing "da" and "sv" from the
above string. If the same is the case for Norwegian Nynorsk, Swedish and
Danish I'd suggest doing the same for those languages as well.

Hello,

Andreas Noteng, le sam. 02 nov. 2019 20:46:12 +0100, a ecrit:

This is not configured by the locales package, but by the localechooser
package, thus reassigning.

Samuel

Christian Perrier <bubulle@debian.org> wrote in bug #553678:

Here, the same as in #553678 counts:

As this is not a bug, but the result of the chosen system implementation,
and it is unlikely, that a change will happen on such a basic level of the
whole installer localization, I mark this bug as wontfix.

Thanks for file this bug anyway!
We need user's feedback!