brew로 설치한 MySQL의 mysql.server start오류 해결

brew remove mysql
brew cleanup
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
sudo rm -rf /usr/local/var/mysql

brew install mysql

출처: https://stackoverflow.com/a/36156848