Uninstall MySql on a Mac OS X

Table of Contents 

Summary

To completely uninstall MySql OS X it is neccessary to remove numerous files.

Symptom

You unable to install an older version of MySql even though you thought you have removed everything.

Resolution

To uninstall MySQL and completely remove it (including all databases) from your Mac do the following:

  • Open a terminal window
  • Use mysqldump to backup your databases to text files!
  • Stop the database server
  • sudo rm /usr/local/mysql
  • sudo rm -rf /usr/local/mysql*
  • sudo rm -rf /Library/StartupItems/MySQLCOM
  • sudo rm -rf /Library/PreferencePanes/My*
  • edit /etc/hostconfig and remove the line MYSQLCOM=-YES-

  • rm -rf ~/Library/PreferencePanes/My*
  • sudo rm -rf /Library/Receipts/mysql*
  • sudo rm -rf /Library/Receipts/MySQL*
  • sudo rm -rf /private/var/db/receipts/*mysql*

The last three lines are particularly important as otherwise, you can't install an older version of MySQL even though you think that you've completely deleted the newer version!

Comments

What I have to do if there's no hostconfig file in /etc?

Apparently as of OS X Yosemite, /etc/hostconfig is no longer installed as part of MAC OS. Not sure what are the implications of this for uninstalling MySQL though

Test Reply to Stasp.

Just wondering why this is here at all.  Since JasperReports Server uses Postgres by default ... Although, in the memory of the original author, rmiller, may he RIP, we will leave it here.

Feedback
randomness