Got a stable Linux system running.

Nice and crisp and smooth, no molasseses or foot dragging.

It takes only 25 seconds to boot up!

Lubuntu - give it a try...  https://help.ubuntu.com/community/Lubuntu/GetLubuntu

Anyway I got past the permissions error, but now still have an error message.

Error shows after turning on radio and clicking OK.

See attached screen shot.

Could not configure port:(5,'input/output error')

I still have not found a way to ID which ttyS* I am plugged into.

Rick