We recently updated one of our OpenStack installations from Grizzly to Icehouse. Updating OpenStack by one version is tricky at best, and if you try two versions, you're bound to hit some issues. We did.
Here is a short recap of what extra we had to do for the update. It does not include the basic tasks like updating the . . .
I'm your typical modern Open Source loving computer geek. This means I occasionally run into harder problems I can't DuckDuckGo (since, as a typical modern Open Source loving geek, I'm somewhat privacy conscious) an answer for. This is your run-of-the-mill this is my error message, and this is how I solved it blog for future me . . .