I would like to try MySQL 5.6 on my machine, but I cannot start it. I always get an error : [ERROR] /usr/local/mysql-5.6.5-m8-osx10.6-x86/bin/mysqld: ambiguous option '--log=/var/log/mysqld.log' (log-bin, log_slave_updates) my.cnf: [mysqld]<br/> pid-file=/usr/local/mysql-5.6.5-m8-osx10.6-x86/mysql.pid<br/> log-error=/usr/local/mysql-5.6.5-m8-osx10.6-x86/data/mysql-error.log<br/> log-slow-queries=/usr/local/mysql-5.6.5-m8-osx10.6-x86/data/mysql-slowquery.log<br/> log-bin=/usr/local/mysql-5.6.5-m8-osx10.6-x86/data/mysql-bin.log<br/> general_log_file=/usr/local/mysql-5.6.5-m8-osx10.6-x86/data/mysql-general_log_file.log<br/> log=/usr/local/mysql-5.6.5-m8-osx10.6-x86/data/mysql.log<br/> I try to set "log" and "log-bin" paramether in my.cnf file and also as start parameters for mysqld, but with no luck. Any idea what I can do? Thank you. My environment: OS X 10.6.8 mysql-5.6.5-m8-osx10.6-x86 (not _x64 version) Note: I'm also running Mysql 5.5 on this machine (different port and socket). I also try to stop this instance but I get the some error.