Require login for Single User mode? Is there a way to require a password to login to single user mode? I don't want to use a firmware password, because that will not only disable single user mode, but also Startup Manager (which I use to boot from a USB). I don't like the idea of anyone with physical access to my computer having more privileges than my user does.

I'd simply like to have it ask for the root password before logging in as root, or ask for any username and password, and log them in normally. Is there a way to do this?
The following article may help your problem. :)

Mac OS X: Require Password at Single User Mode:


  By default, Mac OS X will simply give you a shell when you perform a Single User Mode startup.  However, you can force OS X to ask for a password in order to gain shell access.  To do so, vi the /etc/ttys and change secure to insecure.  Once you have done so, create a password in /etc/master.passwd for root.