When Norwegian keyboard layout is chosen in the GUI installer, "no" is used in text mode instead of "no-latin1". "no" is an old, 7-bit layout which uses "{|}" instead of the Norwegian characters "fxe" (some intelligent programs used to translate it automatically - printing C code from mpage (or was it a2ps?) has been to clever for me a couple of times)
There are several issues where there are more choices available in the TUI loader than in the GUI language selection. We are working to get these selection screens synced up with one another, so look forward to that in the final release.
That might be nice, but main thing is to use no-latin1 now. Map Norwegian keyboard in GUI to no-latin1, not no. This used to be the default, and I can't think of any good reasons to change it - it would confuse almost all users (it's bad enough than the obsolete one is called "no" in the TUI-install)
To repeat myself - using "no" is not an option. Use no-latin1. "no" doesn't have support for Norwegian characters.
This will be fixed in the next cut of the installer. Have actually seen this working here in the test lab.