dd (to erase disk) from emergency holographic shell

[Anton Shterenlikht]

I need to erase all of my fbsd disk.
I booted the installation cd, launched
Emergency Holographic Shell, but
cannot find any command, except rm and pwd.

I'd like to erase my disk with dd if=/dev/null of=/dev/ad0

Please advise

many thanks
anton

-- 
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423