mysql 修改root 用户密码
文章来源:http://www.centos.bz/2011/04/reset-mysql-root-password/
你可以按照以下简单的五步来重置MySQL数据库服务器密码。第一步,停止MySQL服务器。第二步,使用–skip-grant-tables选择启动mysqld进程以便解除要求密码登录提示。第三步,以root用户连接mysql服务器。第四步,设置一个新的mysql root用户密码。第五步,退出并重启mysql服务器。以下给出每步的具体命令。
1、停止mysql服务
- /etc/init.d/mysql stop
输出:
Stopping MySQL database server: mysqld.
2、设置忽略密码启动mysql服务器
- mysqld_safe --skip-grant-tables &
输出:
[1] 5988
Starting mysqld daemon with databases from /var/lib/mysql
mysqld_safe[6025]: started
3、使用mysql客户端连接mysql服务器
- mysql -u root
输出:
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 1 to server version: 4.1.15-Debian_1-log
Type ‘help;’ or ‘h’ for help. Type ‘c’ to clear the buffer.
mysql>
4、设置一个新的mysql root用户密码
- mysql> use mysql;
- mysql> update user set password=PASSWORD("NEW-ROOT-PASSWORD") where User='root';
- mysql> flush privileges;
- mysql> quit
5、停止mysql服务器
- /etc/init.d/mysql stop
输出:
Stopping MySQL database server: mysqld
STOPPING server from pid file /var/run/mysqld/mysqld.pid
mysqld_safe[6186]: ended
[1]+ Done mysqld_safe –skip-grant-tables
6、启动mysql服务器并测试
- /etc/init.d/mysql start
- mysql -u root -p