[PLUG] VirtualBox Question

[Dick Steffens]

My desktop is dual boot to either Ubuntu 12.04 or Ubuntu 14.04. They are 
installed in separate hard drives, not separate  partitions on the same 
drive. I have VirtualBox installed on each. In the Ubuntu 12.04 
installation I have a Windows 7 virtual machine. I tried exporting it to 
the installation on Ubuntu 14.04, but the Windows copy protection system 
doesn't like that it's on a different drive. I know that I can do 
something with MS to move the installation to a different drive, but at 
this point I'm testing to see if I want to switch to 14 or stay with 12 
a bit longer, and I'd rather not mess with "moving" my virtual Win 7.

Is there some way to tell VirtualBox on my 14 installation to use the 
virtual machine on the 12 installation's drive? If so, what is the 
concept called so I can search for instructions on how to do it?

Thanks.

-- 
Regards,

Dick Steffens