I am working with a Gumstix computer running a console-only version of Ubuntu (courtesy of the Linaro project, which is quite fantastic), and when I boot the computer while connected to it over a serial console (ttyUSB) it automatically launches as root. I think this is a terrible idea. I'd rather it login as the user I've set up. How can I set this up?
I guess you haven't created a basic user yet :P
Create a user for yourself... It'll ask you to enter a password.
If you cannot gain root privileges through sudo, edit /etc/sudoers
And uncomment the sudo group line to look like this:
Then add yourself to the sudo group
If all goes correctly, Ubuntu should realise that there's more than one user and prompt for a login... I have a Pandaboard with Natty Headless on it, and as far as I remember, I've only needed to add a user