1.data目录不见了
启动   mysql
>mysqld --initialize 
mysqld: Could not create or access the registry key needed for the MySQL application
to log to the Windows EventLog. Run the application with sufficient
privileges once to create the key, add the key manually, or turn off
logging for that application.


MySQL 启动 遇到上面问题






解决办法: Since the error seems to be related to privileges/permissions, have you tried to "run as administrator"? I'm not too savvy about permissions on Windows machines...but I think "run as administrator" is similar to a linux command running under sudo 


http://stackoverflow.com/questions/33691038/issue-when-running-mysqld 


就是以管理员登录 运行mysqlId

ROOT的随机密码在如下地方找到:

找到


2016-08-05T06:17:33.064357Z 1 [Note] A temporary password is generated for root@localhost: L1PsKy!dG9Fo


L1PsKy!dG9Fo


这个就是我们要找的密码了

启动后登录 


>mysql -u root -p 









登陆成功：


3.修改密码的指令






果然新版本中修改密码的指令也不是那么好找的。。






在成功连接之后，使用sql语句修改，以往未登录状态下的修改方法已经不能使用啦~~


mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
修改成功：