- 编辑 my.cnf
[mysqld]下插入 skip-grant-tables
[root@VM_0_7_centos mysql]# vim /etc/my.cnf
# For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html [mysqld] skip-grant-tables # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0
- 重启 MySQL 服务
[root@VM_0_7_centos mysql]# service mysqld restart
- 进入MySQL
[root@VM_0_7_centos mysql]# mysql -uroot
- 更新密码
- flush privileges;
- alter user 'root'@'localhost' identified with mysql_native_password by '123456';
- flush privileges;
- exit;
- 编辑 my.cnf 注释掉 skip-grant-tables
- 重启MySQL服务
[root@VM_0_7_centos mysql]# service mysqld restart
- 进入MySQL 输入密码
[root@VM_0_7_centos mysql]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.26 MySQL Community Server (GPL) Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
- 结束