I looked into the /var/log/mysql/error.log and saw a couple ERROR messages:
2016-05-11T16:44:29.464074Z 0 [ERROR] unknown variable 'key_buffer=16M' 2016-05-11T16:46:47.683724Z 0 [ERROR] unknown variable 'myisam-recover=BACKUP' I removed the 'key_buffer=16M' and 'myisam-recover=BACKUP' entries from the /etc/mysql/my.cnf and /etc/mysql/mysql.conf.d/mysqld.cnf files. Then I reran the 'dpkg --configure -a' command. It worked and finished the MySQL configuration. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1571764 Title: mysqld fails to start after upgrade: performance_schema definition errors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1571764/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
