mysql 启动错误-server PID file could not be found

在centos5.2下安装5.1.30的时候出现如下mysql错误 MySQL manager orserverPIDfilecould not befound![FAILED] Starting MySQL.Manager of pid-file quit without updating file.[FAILED]mysql 查看错误日志 默认的mysql错误日志是在/usr/local/mysql/data 下面&nb