El Capitan Mysql “ERROR! The server quit without updating PID file”

I upgraded from Yosemite to El Capitan. MySQL needs to be upgraded to at least 5.7.9. This version corrects previous issues with starting mysql on boot as Apple changed the launch process on OSX Yosemite onwards. At the time of this article the current version is 5.7.10, download it from http://dev.mysql.com/downloads/mysql/ and choose the DMG version. …