Package mysql-server-5.5 is not configured yet

The main problem is that the minimal Ubuntu install does not have everything that you need.

The post Package mysql-server-5.5 is not configured yet provides the solution to your problem. I suggest you read that. However, I will provide a brief summary below.

Clean out the old mysql installation.

sudo apt-get purge mysql*
sudo apt-get autoremove
sudo apt-get autoclean

Upgrade the things that are missing in the minimal Ubuntu installation.

sudo apt-get dist-upgrade

Install MySql as normal:

sudo apt-get install mysql-server

If that still doesn't work you can do

 sudo apt-get install mysql-server --fix-missing --fix-broken