fdisk without mkfs?

["Todd A. Jacobs" <tajacobs nvbell net>]

I'm a little confused about something. The other day, I fdisked a new
partition, and then successfully mounted it without running mkfs first.
The filesystem seemed to work fine, despite the fact that I never actually
created one. Can anyone shed some light on this for me?

-- 
Todd A. Jacobs
Network Systems Engineer