Update with USB?

[Grizzly]

20 March 2016  at 18:14, Karl Auer wrote:
Re: Update with USB? (at least in part)

>On Sun, 2016-03-20 at 06:55 +0000, David G. wrote:
>> IIRC you can boot to the Live USB and it offers to upgrade during the
>> installation process.
>
>Yes - you can upgrade to the version on the stick, install the version
>on the stick alongside existing installed operating systems, or wipe
>everything to install the version on the stick.
>
>While your mileage may vary, I have had uniformly bad experiences with
>upgrading, ever since Ubuntu 5.mumble. I now make sure I have a good
>backup or two, and always install a new version from scratch.

This will be my first "Upgrade", up to Trusty I had always just installed the 
next release and started over, but I have kept Trusty and run regular 

sudo apt-get update -y  && sudo apt-get -y dist-upgrade

Now Im looking at

sudo do-release-upgrade 

I've run a Live Daily of Xenial to see if there are any HW problems (Video & 
WiFi cards  are the usual weak points) I had hoped that I could add the USB to 
software center and re-run "update, dist-upgrade, do-release-upgrade" (not sure 
if dist-upgrade is required in this scenario?)