Resizing VirtualBox disk

[David Kramer]

On 02/08/2011 12:45 PM, David Rosenstrauch wrote:
> I've run into this before.  This is maddeningly stupid, I know, but if 
> you give it full absolute paths to the .vdi files, then that error 
> message goes away.  Moronic, but works.

Actually I had them in the current directory so that wasn't a problem.
The problem was that I had to detach the old VDI from the guest.  After
I did that everything worked great.