"Cannot load from mysql.procs_priv. The table is probably corrupted" on Osx / homebrew

I think it will be better to use this:

mysql_upgrade -u root -p

Enter your password and wait a few seconds.

Completely removing mysql and reinstalling it worked (less than 15 mins).

1. UNINSTALL AND PURGE MYSQL FROM SYSTEM

1. Back up databases.
2. Stop and kill any MySQL processes. Check for processes with ps -ax | grep mysql

3. Uninstall mysql

   brew remove mysql
   brew cleanup
   

4. Remove all the residual files

   sudo rm /usr/local/mysql
   sudo rm -rf /usr/local/var/mysql
   sudo rm -rf /usr/local/mysql*
   sudo rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
   sudo rm -rf /Library/StartupItems/MySQLCOM
   sudo rm -rf /Library/PreferencePanes/My*
   

5. Unload previous auto login

   launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist 
   

6. Remove previous config. Delete the line MYSQLCOM=-YES- from /etc/hostconfig

7. Remove previous preferences

   sudo 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*
   sudo rm -rf /private/var/db/receipts/*mysql*
   sudo rm -rf /private/var/mysql
   

8. Optional, restart computer. I didn't.

2. INSTALL MYSQL

1. Install Mysql

   brew install mysql
   

2. Set to run on startup

   brew services start mysql
   

3. Secure the installation

   mysql_secure_installation