1、安装MySQL 5.5.x的yum源:
rpm -Uvh http://repo.webtatic.com/yum/centos/5/latest.rpm
2、安装MySQL客户端的支持包:
yum install libmysqlclient15 --enablerepo=webtatic
3、卸载MySQL老版本的软件包:
yum remove mysql mysql-*
4、安装MySQL 5.5的客户端和服务端:
yum install mysql55 mysql55-server --enablerepo=webtatic
5、启动MySQL系统服务,更新数据库:
/etc/init.d/mysqld restart
mysql_upgrade
6,修改密码
# mysql -u root mysql //默认的没有密码直接进去的
mysql>use mysql;
mysql>desc user;
mysql> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root"; //为root添加远程连接的能力。
mysql>update user set Password = password('xxxxxx') where User='root';
mysql>select Host,User,Password from user where User='root';
mysql>flush privileges;
mysql>exit