Thanks for all the replies, guys.  I'll address some questions and statements in-line in the message, and then give a synopsis of my progress, so far.  We can go from there.

On Tue, Feb 13, 2018 at 9:00 PM, Andrew Errington <erringtona@gmail.com> wrote:
As well as fixing the destination (of=) you should probably use "sudo dd".

Thanks, Andrew.  I'm logged in as root on my linux machine where the image creation was done.  I know, it's a no-no, but after 16 years, I've not had a problem.

​Look for more replies...​  I thought I would see all quoted text in the thread, but gmail has other ideas... ~sigh~