I have some experiences about keyboard layout aka keymaps in Linux. It was a long time ago on RedHat. Anyway, I have just got this problem again yesterday after trying to run ISPConfig Webhosting Appliance based on Debian 3.1. The default keymap is non-US. Some keys are switched with other ones.

I found a solution in a blog.

dpkg-reconfigure console-data

Tags: keyboard layout, debian, ubuntu