在CentOS6.5中安装MySQL及遇到的问题Can't open the mysql.plugin table.

install MySQL：

yum install -y mysql-server mysql mysql-deve

problem:

After installing mysql I want to start it but only get this:

solution

running:mysql_install_db --user=mysql --ldata=/var/lib/mysql/

But I don't know the reason clearly.
This site provides me much to learn about it