The problem here is the dependencies, package suggestions and recommendations.
At first - there is no binary
xorg-server package in the repositories, this is the name of source code package, so there are binary packages which were built from it.
So you have to install one of them with
sudo apt-get install xserver-xorg-core --no-install-recommends --no-install-suggests
To install Openbox with minimal dependencies use:
sudo apt-get install openbox --no-install-recommends --no-install-suggests
For correct Xorg initialisation you have to install
xinit package by:
sudo apt-get install xinit
Finally you need to install the login manager like Slim with:
sudo apt-get install slim
And then reboot or launch
slim manually by
sudo service slim start.
- The resulting system installed from mini.iso will contain about 500 packages.
- If you want to have easy way and do not really care about 50 extra packages - use simple one command to install all the stuff -
sudo apt-get install xinit openbox slim .