virtualbox with FreeBSD as host

[Fbsd8]

Mario Lobo wrote:
> On Fri, 16 Nov 2012 09:57:53 -0500
> Fbsd8 <fbsd8 at a1poweruser.com> wrote:
> 
>> Section 23.3 of the handbook speaks about FreeBSD as a host.
>> No where in that section does it say anything about virtualbox
>> running from the FreeBSD host command line or from A Desktop.
>>
>> Do I need a Desktop for virtualbox to run under?
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> 
> NOPE !!
> 
> VBoxHeadless -startvm  "vm name"
> 

Issueing VirtualBox from host command line gets this msg.
Failed to open the x11 display

VBoxHeadless -startvm  "vm name" assumes that there a vb guest
all ready configured which is not my case.

There is no man page for VBoxHeadless command.

How do a configure a vb guest from the host command line?