在你的“主机名”中。在MySQL工作的数据文件夹中的err文件中，尝试寻找以以下开头的字符串:

“为roor@localhost生成临时密码”

你可以使用

less /mysql/data/dir/hostname.err 

然后使用斜杠命令，后面跟着要查找的字符串

/"A temporary password"

然后按n，进入下一个结果。

除了其他答案外，在cpanel安装中，mysql根密码存储在一个名为/root/.my.cnf.的文件中(cpanel服务在更改时将其重置，所以这里的其他答案不会有帮助)

系统:

中佐的Linux 7 位于华盛顿市郊1414区

过程:

Open two shell sessions, logging in to one as the Linux root user and the other as a nonroot user with access to the mysql command. In your root session, stop the normal mysqld listener and start a listener which bypasses password authentication (note: this is a significant security risk as anyone with access to the mysql command may access your databases without a password. You may want to close active shell sessions and/or disable shell access before doing this): # systemctl stop mysqld # /usr/sbin/mysqld --skip-grant-tables -u mysql & In your nonroot session, log in to mysql and set the mysql root password: $ mysql mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('MyNewPass'); Query OK, 0 rows affected, 1 warning (0.01 sec) mysql> quit; In your root session, kill the passwordless instance of mysqld and restore the normal mysqld listener to service: # kill %1 # systemctl start mysqld In your nonroot session, test the new root password you configured above: $ mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. ... mysql>

你找不到它。它存储在一个数据库中，您需要根密码才能访问该数据库，即使您以某种方式获得了访问权限，它也会使用单向散列进行散列。您可以重置:如何重置Root用户密码

有一件事绊倒了我在一个新的MySQL安装，并想知道为什么我不能得到默认密码工作，为什么甚至重置方法不起作用。 在Ubuntu 18上，MySQL服务器的最新版本在默认情况下根本不使用root用户的密码认证。这意味着不管你设置它为什么，它都不会让你使用它。它期望您从特权套接字登录。

mysql -u root -p

即使您使用了正确的密码，这也不起作用。

相反，你需要使用:

sudo mysql

这将适用于任何密码。 然后输入

 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'Password you want to use';

然后登出，现在它将接受您的密码。

根据MySql版本的不同，该过程有所不同。按照您的版本所描述的步骤进行操作:

HINTS - Read before the instructions page for your version of MySql* In step 5: Instead of run CMD, create a shortcut on your desktop calling CDM.exe. Then right-click on the shortcut and select "Execute as Administrator". In step 6: Skip the first proposed version of the command and execute the second one, the one with the --defaults-file parameter Once you execute the command, if everything is ok, the CMD window remains open and the command of step 6 continues executing. Simply close the window (click 'x'), and then force close MySQl from the Task Manager. Delete the file with the SQL commands, and start again MySQL. The password must be changed now.

5.0 http://dev.mysql.com/doc/refman/5.0/en/resetting-permissions.html

5.1 http://dev.mysql.com/doc/refman/5.1/en/resetting-permissions.html

…只需在链接中更改版本(5.5,5.6,5.7)