- 打开终端
- sudo /usr/local/mysql/support-files/mysql.server stop
- sudo /usr/local/mysql/bin/mysqld_safe --skip-grant-tables
- 再开一个终端
- sudo /usr/local/mysql/bin/mysql -u root
- mysql>use mysql
- >update user set authentication_string=password('YOURNEWPASSWORD') where user='root';