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<version>.deb for your installation from http://dev.mysql.com/downloads/repo/apt/.mysql-apt-config<version>.debsudo apt-get install mysql-serverWith regards to the CUI (character user interface):
This should take you back to the list of packages (i.e. not the list of version numbers). Then:
When you can't do
apt-get purge mysql-apt-config
because you're trapped: It won't execute because dpkg is interrupted, and "sudo dpkg --configure -a" backs you to the broken "configuring mysql-apt-config" screen...
edit: /var/lib/dpkg/info/mysql-apt-config.postinst
add exit at the beginning , then get rid of the package :
sudo dpkg --configure mysql-apt-config
sudo apt-get remove mysql-apt-config