按照官方的安装手册，进行安装，启动的时候，总是提示:

Starting MySQL.. ERROR! The server quit without updating PID file (/var/lib/mysql/xxxxxx.pid).

>cd /usr/local/mysql

>./scripts/mysql_install_db –user=mysql –basedir=/usr/local/mysql/ –datadir=/usr/local/mysql/data

>vim /etc/my.cnf

将[mysqld]下添加

datadir=/usr/local/mysql/data#如果已经有了，修改即可。

>service mysql start

Starting MySQL. SUCCESS!，启动成功