本来初始化配置是这样的：
scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql
出现了
[root@localhost mysql-5.6.14]# service mysql restart
ERROR! MySQL server PID file could not be found!
Starting MySQL. ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).
在日志中出现了如下错误：
Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
后来采用了下面的语句就可以了：
scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql