I am trying to upgrade my Sitecore installation from 8.1 original release to 8.2 original release.
I've successfully upgraded my CM instance, and so now I'm trying to do the same thing for my CD instance. I've downloaded the Upgrade Guide from the Sitecore documentation site, and I've gotten to step 1.2.3, where I upgrade the update installation wizard. It says to log into the CD instance and then run the Update Installation Wizard package.
So as soon as I try to log into my CD instance, I get the following error:
At this point, I realize that of course I can't log into the CD instance of Sitecore, because I've disabled that functionality. My understanding is that is standard functionality to not allow CD instances to be logged into and have access to the desktop, as it could be a security risk if someone were to gain access to a login.
So, while I can temporarily allow access to the desktop for my test servers, I'm not sure that is such a good idea for running this on wizard on my Production CD server.
What is the proper way to upgrade my CD instance?