Two ways to approach this: A - Upgrade & Pray 1) Create an external clone of your current drive using Carbon Copy Cloner or SuperDuper. 2) Boot from the external clone drive. 3) Go to the Apple App Store and download/install Mavericks. 4) Check to see what version of MySQL is now installed on the drive. 5) If MySQL isn't the version you need, now go to the MySQL distribution site and get the correct version & install it. 6) Make sure all file/directory protections are correctly set. 7) See if Moodle runs. B - Upgrade from 1st Principles 1) Backup your current production Moodle install/themes, etc.. and export all data from the Moodle database 2) Create an external clone of your current drive using Carbon Copy Cloner or SuperDuper. 3) Boot from the external clone drive. 3) Go to the Apple App Store and download/install Mavericks. 4) Check to see what version of MySQL is now installed on the drive. 5) If MySQL isn't the version you need, now go to the MySQL distribution site and get the correct version & install it. 6) Copy the backup you made in step B1 into the new environment, and then import all your data into the new MySQL. 7) Make sure all file/directory protections are correctly set. 8) See if Moodle runs
by Ed Snowdon (no, not THAT one).