I have erased and installed OSX 10.11 El Capitan and I have been following through to get MySQL up and running on the new OS X. The first step was to download (works on 10.11, they recommended in the tutorial). While I were finishing installing the MySQL, I got the message saying that: 2015-10-25T02:19Z 1 [Note] A temporary password is generated for root@localhost: R>gFySuiu23U If you lose this password, please consult the section How to Reset the Root Password in the MySQL reference manual. That was weird, I have never seen that kind of message. After that, I started MySQL via the Preference Pane and then use /usr/local/mysql/bin/mysql -v command on the terminal for another step. I got an error message saying that: ERROR 1045 (28000): Access denied for user 'cheetah'@'localhost' (using password: NO) I have also tried to access database through Sequel Pro using root as username and blank password, I got access denied message saying that: Unable to connect to host 127.0.0.1 because access was denied.