Same problem for me too. A workaround for me is:
sudo mysql_install_db --user=mysql --basedir=/usr/ --ldata=/var/lib/mysql/ Source from https://wiki.archlinux.org/index.php/MySQL#Installation -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to mysql-5.6 in Ubuntu. https://bugs.launchpad.net/bugs/1435709 Title: mysql.service fail to start after upgrade to mysql-server.5.6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.6/+bug/1435709/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs