rel 9.0 i386 boot hangup

[Fbsd8]

I installed 9.0 using the bootonly cd over the net.
The new keymap function is causing problems.
What are the steps to boot into single user mode so I can edit rc.conf 
and change the keymap= to different one.
Is the procedure documented in the handbook? If so I was not able to 
locate it.

Also want to know what is the keymap defaulted to by previous releases. 
That is the one I want. I have standard 101 keyboard.