I had a task of deploying Ubuntu Desktop 16.04 on multiple machines with Windows 10 on them. Of course, to accomplish the task efficiently, I needed to find a way to install automatically.
I asked Google, found various manuals, tried all of them... And that's where I stuck. No matter what I did, I always had the Choose installation type question. As a bonus, I learned that the official documentation is terribly outdated, that there are several types of syntax and all of them don't work at all...
In the end, I saw the light at the end of the tunnel. So as to let others to not have the same struggle as I had, here's the how-to. It's guaranteed to work, given the prerequisites are satisfied.
How do I make a completely automatic installation of Ubuntu 16.04, if I have a computer or computers with an already installed system (Microsoft Windows, for example)? And how to make it install programms I need after the new system is ready?