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insert into user(host,user) values(‘%‘,‘root‘);
上一步不起作用的话(登录MySQL之后):
GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘1234‘ WITH GRANT OPTION;
service mysqld stop
mysqld_safe --user=root --skip-grant-tables
mysql -u root
use mysql
update user set password=password("new_pass") where user="root";
flush privileges;
卸载MySQL
yum --releasever=6 remove mysql*
查看残留:whereis mysql
删除mysql目录:rm –rf /usr/lib64/mysql
删除相关文件:rm –rf /usr/my.cnf
rm -rf /root/.mysql_sercret
rm -rf /var/lib/mysql
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原文地址:http://my.oschina.net/muyexia/blog/404974