[PLUG] Expand a VirtualBox VMDK file?

[Dick Steffens]

I'm running Win2K as a virtual machine on my new Ubuntu 14.04 host. 
There's plenty of machine, memory, and disk space on this machine (Intel 
i3-4130, 8GB RAM, 1TB hard drive) to allow me to run a bigger virtual 
machine than I could on my old machine. I exported the old virtual 
machine as a ovf and vmdk files, and successfully imported it.

The program I'm running on it needs more disk space to take advantage of 
a feature I have not used before. I've tried Googling for how to expand 
the virtual disk space in a vmdk file, but I keep finding how to do that 
on a Windows host rather than a Linux host.

Has anyone had occasion to expand a vmdk file with a Linux host - 
preferably running Ubuntu, but any Linux flavor will help.

Thanks.

-- 
Regards,

Dick Steffens