I am using Ubuntu 14.04. sudo apt-get update always give me this option to configure mysql-apt-config.
sudo apt-get remove mysql-server mysql-client mysql-commonsudo apt-get autoremovesudo apt-get autocleansudo apt-get install libaio1mysql-apt-config.deb for your installation from http://dev.mysql.com/downloads/repo/apt/.mysql-apt-config.deb sudo apt-get install mysql-server