Sorry, I guess I was unclear
My other computers are often connected via a VPN, which makes downloading the zip (https://s3.amazonaws.com/dnld.lime-technology.com/stable/unRAIDServer-6.1.0-x86_64.zip) pretty fast.
So I was wandering, if I could just put this zip on the flash drive and invoke the update from the WebUI with the system realizing there's already an update zip and using that instead of downloading...
I'd rather get around stopping the machine, opening it up, unplugging etc...
Thanks