FreeBSD 6.0 install: Cannot dump. No dump device found...

[Jordan Mendler]

I am trying to install FreeBSD for the first time on an athlon xp 1700  
w/ 1 gb of ram and get the following error message at the beginning  
right after it loads all the drivers:
Uptime: 1s
Cannot dump. No dump device defined.
Automatic reboot in 15 seconds. Press any key on the console to abort.

I tried slowing the memory timing, using boot and full install discs,  
as well as trying 5.4 and 6.1-BETA2, and get the same problem every  
time. Does anyone know what is causing this and how I can get past it  
to install FreeBSD?

Thanks, Jordan