mysql重设root密码

1.
# vi /etc/my.cnf
在[mysqld]的段中加上一句：skip-grant-tables
如：
[mysqld]   
datadir=/var/lib/mysql   
socket=/var/lib/mysql/mysql.sock   
skip-name-resolve   
skip-grant-tables #加上这句
2.
# /etc/init.d/mysql restart
3.
# /usr/bin/mysql    
mysql> USE mysql ;   
mysql> UPDATE user SET Password = password('new-password') WHERE User = 'root' ;   
mysql> flush privileges ;   
mysql> quit
4.
# vi /etc/my.cnf
将刚才在[mysqld]的段中加上的skip-grant-tables注释或删除
5.
# /etc/init.d/mysql restart