我已经更新到雪豹，我通过以下这篇文章删除了MySQL： http : //forums.mysql.com/read.php?11,75256,255853#msg-255853
之后，我已经安装了mysql 64位社区版，但使用prefpane MySQL不会启动。
使用terminal给了我们更多的信息，但我不知道如何解释它们：
stefansmac:~ stefan$ cd /usr/local/mysql-5.1.42-osx10.5-x86_64/bin/ stefansmac:bin stefan$ sudo ./mysqld_safe 100105 13:56:35 mysqld_safe Logging to '/usr/local/mysql-5.0.51b-osx10.5-x86//stefansmac.local.err'. 100105 13:56:35 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql-5.0.51b-osx10.5-x86/ 100105 13:56:35 mysqld_safe mysqld from pid file /usr/local/mysql-5.0.51b-osx10.5-x86//stefansmac.local.pid ended 最好的祝福
在PATH中添加/ usr / local / mysql / binpath后，执行./mysqld时出现以下错误
100105 14:14:11 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/mysql-5.0.51b-osx10.5-x86/ is case insensitive 100105 14:14:11 [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root! 100105 14:14:11 [ERROR] Aborting 100105 14:14:11 [Note] ./mysqld: Shutdown complete
确保/usr/local/mysql-5.0.51b-osx10.5-x86/目录属于mysql用户。 那就是： sudo chown -R mysql /usr/local/mysql-5.0.51b-osx10.5-x86/