yum install mysql
yum install mysql-server
yum install mysql-devel
chgrp -R mysql /var/lib/mysql
chmod -R 770 /var/lib/mysql
service mysqld start 
mysql
SET PASSWORD FOR 'root'@'localhost' = PASSWORD('secret_password');
 

 设置默认编码等一些初始参数（my.cnf）(若无my.cnf, 则可cp /usr/share/mysql/my-small.cnf /etc/my.cnf)

   vi /etc/my.cnf

   [mysqld]

   datadir=/var/lib/mysql

   socket=/var/lib/mysql/mysql.sock

   user=mysql

   default-character-set=utf8 [添加]

   default-storage-engine=INNODB [添加]

   old_passwords=1

   [client]

   default-character-set=utf8 [添加]

   [mysqld_safe]

   log-error=/var/log/mysqld.log

   pid-file=/var/run/mysqld/mysqld.pid

下面就是常规的操作了：

  更改 root 密码:  mysqladmin -u root password 'newpassword'

  添加mysql用户： GRANT ALL PRIVILEGES ON my_db.* TO 'user'@'localhost' IDENTIFIED BY'password';

  删除test数据库: mysql -u root -p mysql> DROP DATABASE test; 

  删除匿名帐户: DELETE FROM mysql.user WHERE user = ''; 

  重载权限: mysql> FLUSH PRIVILEGES; 

 如要其他机器能访问，在mysql.user中添加一个Host为'%'的user,然后flush priviledges;，最后防火墙加一句类似这样的语句即可(开通3306端口)：

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT

如果要reboot自启动：

chkconfig --levels 345 mysqld on