I have a raspberry pi model b. I installed rasbain form here. it was the minimal option. when it booted everything was ok. I plugged in my normal USB cord keyboard and it did not see it. Also my 2.4G keyboard. any help.
Did you plug in the keyboard before booting? I've never had any trouble with keyboards not showing up on any Pi. A corded keyboard should just work, and I've had wireless dongled ones come up too, Logitech and cheapo brands too. Most of those are 27MHz, not 2.4GHz, but they should both work as long as you're using the right USB dongle-- the USB port shouldn't know the difference.