One thing that I want to say before I go on in case of confusion is that
VDI are all (virtual
*) hard drive files, where as
.VMX are Virtual Machine settings files. An
OVF File comes with a separate virtual hard drive (which can be in VMDK format, or one of a few others), where as a
OVA file is a contained all in one virtual machine.
* - Majority are virtual!)
I have personally not seen a Virtual Machine boot from a RAW drive before. If you can convert a
RAW to a
VBoxManage I would the recommend using
VMWare Player or Workstation (for sure) or Virtual Box (not so sure!) to create a new Virtual Machine and select the
VMDK file you just converted.
Again, I am not sure what Virtual Box uses as it's default settings file, but, I know VMWare Workstation uses
VMX, you should then have no problems using
ovftools as you will have a new Virtual Machine with the correct hard drive.
After looking around, the only tool I could find is Live View which can convert a Raw file to a VMDK.