MYSQL置空密码

pstree -p 看看mysql的进程树然后kill -9 pid

 

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

 

 

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>

 

 

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

停止mysql服务器
/etc/init.d/mysql stop

 

启动mysql服务器并测试
/etc/init.d/mysql start
mysql -u root -p