mysqld will not start-problem with /tmp/mysql.sock
My solution to the [ERROR] Can't start server : Bind on unix socket: Permission denied problem was to change ownership of the directories: /usr/local/var/run/mysqld /usr/local/var/db/mysql sudo chown -R _mysql /usr/local/var/run/mysqld via: http://bugs.mysql.com/bug.php?id=11380