I posted this on the weekend while frustratingly attempting an upgrade, so here is a Monday bump.
while this method of upgrading the appliance was used on Alert Central, it was actually never supported on Virtualization Manager, or if it was, it was in a distant past. This upgrade mechanism is a feature of VMware Studio. The way its' supposed to work is that the appliance vendor sets up an online repository and keeps it up to date - I think it was never meant to be created by the end user. There is a way to make it work though:
1. Unpack the standard upgrade .iso image using 7zip or a similar application which can work with this format
2. Put the unpacked 'update' directory onto a server under your control. To try this out, I used a powerful Python command to start a simple file server in the directory: 'python -m SimpleHTTPServer 8000'
3. Set the Repository URL to http://[server_ip]:8000 and save the settings
Please note that this is not an officially supported method of upgrading your Virtualization Manager, so you should make sure you have a snapshot or backup of the VM before upgrading.
Awesome! Thanks Jan. This is what I was looking for. I honestly forgot that you can unzip ISO's, but even had I remembered that I doubt I would have thought to do that in this instance. I will definitely try this out next upgrade (after we take a snapshot of course) since it doesn't look like our VM team want to give us the right to mount ISO's to our own danged VM's. That doesn't sound like security to me. That sounds like control .