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去哪找网站建设公司好,推广合作,静态手机网站,wordpress管理插件升级项目需要使用Mysql8.0, 查看自己的ubuntu22.04上mysql版本为5.7， 使用以下命令自动升级到8.0版本。 sudo apt install Mysqlsock错误： Can’t connect to local MySQL server through socket 运行mysql -u -p 报以下错误： ERROR 200…

升级

项目需要使用Mysql8.0, 查看自己的ubuntu22.04上mysql版本为5.7，使用以下命令自动升级到8.0版本。

sudo apt install Mysql

sock错误： Can’t connect to local MySQL server through socket

运行mysql -u -p 报以下错误：

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysqld.sock'

解决如下：修改配置文件，增加以下内容：

[mysqld]
socket = /tmp/mysqld.sock[client]
socket = /tmp/mysqld.sock

修改之后，重启mysql服务

sudo systemctl restart mysql

密码问题： ERROR 1045 (28000): Access denied for user ‘root’@‘localhost’

忘记密码会提示以下错误，以下是重置mysql密码方法：

#执行以下命令，输入密码
mysql -u root -p 
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)#停止服务 
(base) moon@moon:~$ sudo service mysql stop#跳过密码检查
(base) moon@moon:~$ sudo mysqld_safe --skip-grant-tables &
[1] 27049
(base) moon@moon:~$ 2025-06-19T09:30:30.942961Z mysqld_safe Logging to '/var/log/mysql/error.log'.
2025-06-19T09:30:30.998082Z mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql#进入mysql,
(base) moon@moon:~$ mysql -u root
# 重新设置密码
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'newpassword';
ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.06 sec)mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.06 sec)mysql> quit
Bye#重启服务 
(base) moon@moon:~$ sudo service mysql restart#重新进入
base) moon@moon:~$ mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.36-0ubuntu0.22.04.1 (Ubuntu)Copyright (c) 2000, 2018, 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>

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