vbox error trying to create a raw disk file

[Doug Barton]

I was following the instructions here:

http://www.virtualbox.org/manual/ch09.html#rawdisk

And I got the following error:

VBoxManage internalcommands createrawvmdk -filename WindowsXP.vmdk 
-rawdisk /dev/ad0 -partitions 1,5
Oracle VM VirtualBox Command Line Management Interface Version 3.2.10_OSE
(C) 2005-2010 Oracle Corporation
All rights reserved.

ERROR: VMDK: could not open raw partition file '/dev/ad0'
Error code VERR_ACCESS_DENIED at 
/home/tmp/home/ports/emulators/virtualbox-ose/work/VirtualBox-3.2.10_OSE/src/VBox/Devices/Storage/VmdkHDDCore.cpp(3661) 
in function int vmdkCreateRawImage(VMDKIMAGE*, VBOXHDDRAW*, uint64_t)
Error while creating the raw disk VMDK: VERR_ACCESS_DENIED
The raw disk vmdk file was not created


Any suggestions?

-- 

	Nothin' ever doesn't change, but nothin' changes much.
			-- OK Go

	Breadth of IT experience, and depth of knowledge in the DNS.
	Yours for the right price.  :)  http://SupersetSolutions.com/