macOS mysql，不能更改默認密碼

我按照說明https://coolestguidesontheplanet.com/get-apache-mysql-php-and-phpmyadmin-working-on-macos-sierra/。當在安全模式下，我打開一個新的終端窗口，I型macOS mysql，不能更改默認密碼

mysql -u root 

Welcome to the MySQL monitor. Commands end with; or \ g. 
Your MySQL connection id is 7 
Server version: July 5, 17 MySQL Community Server (GPL)

和進一步的步驟

mysql> FLUSH PRIVILEGES; 
Query OK, 0 rows affected (0.00 sec) 

mysql> ALTER USER 'root' @ 'localhost' IDENTIFIED BY 'MyNewPass'; 
ERROR 1396 (HY000): Operation ALTER USER failed for 'root' @ 'localhost'

密碼不能被改變。你能給些建議麼？

來源

2017-03-07 Míša Velký Ríša

試着運行'UPDATE mysql.user SET Password = PASSWORD（'new-password'）WHERE User ='root'AND Host ='localhost';'後面跟着FLUSH PRIVILEGES;' – mrun

你試過了嗎？ – mrun

嗨，是的錯誤：'mysql> UPDATE mysql.user SET Password = PASSWORD（'new-password'）WHERE User ='root'AND Host ='localhost';'ENTER - > 'ERROR 1054（42S22）：Unknown如何使用FLUSH PRIVILEGES？mysql> FLUSH PRIVILEGES' –

Tyr this 改變由'新密碼'標識的用戶'root'@'localhost';

來源

2017-05-27 12:20:51

macOS mysql，不能更改默認密碼

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