我一直在按照手册在Ubuntu上安装软件套件。我完全不了解MySQL。我已经在我的Ubuntu上完成了以下安装。
sudo apt-get update
sudo apt-get install mysql-server-5.5
sudo apt-get install mysql-client-5.5
sudo apt-get install mysql-common
sudo apt-get install glade
sudo apt-get install ntp
然后我做了
cd ~/Desktop/iPDC-v1.3.1/DBServer-1.1
mysql -uroot -proot <"Db.sql"
我最终得到以下错误消息。
错误1045(28000):拒绝访问用户'root'@'localhost'(使用密码:YES)
我该如何修复它并继续?
当前回答
请阅读官方文档:MySQL:如何重置Root密码
如果您可以访问终端:
MySQL 5.7.6及以上版本:
mysql
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass';
MySQL 5.7.5及以前版本:
mysql
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('MyNewPass');
其他回答
我以root用户($SUDO)安装MySQL，得到了同样的问题
以下是我的解决方法:
sudo cat /etc/mysql/debian.cnf This will show details as: # Automatically generated for Debian scripts. DO NOT TOUCH! [client] host = localhost user = debian-sys-maint password = GUx0RblkD3sPhHL5 socket = /var/run/mysqld/mysqld.sock [mysql_upgrade] host = localhost user = debian-sys-maint password = GUx0RblkD3sPhHL5 socket = /var/run/mysqld/mysqld.sock Above we can see the password. But we are just going to use(GUx0RblkD3sPhHL5) that in the prompt. `mysql -u debian-sys-maint -p Enter password: ` Now provide the password (GUx0RblkD3sPhHL5). Now exit from MySQL and log in again as: `mysql -u root -p Enter password: `
现在提供新密码。这是所有。我们有新密码供以后使用。
这对我很管用。
当您的密码丢失时就会发生这种情况。
忘记密码时的修改步骤:
Stop MySQL Server (on Linux): sudo systemctl stop mysql Start the database without loading the grant tables or enabling networking: sudo mysqld_safe --skip-grant-tables --skip-networking & The ampersand at the end of this command will make this process run in the background, so you can continue to use your terminal and run mysql -u root (as root). It will not ask for a password. If you get error like as below: 2018-02-12T08:57:39.826071Z mysqld_safe Directory '/var/run/mysqld' for UNIX socket file don't exists. mysql -u root ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) [1]+ Exit 1 Make MySQL service directory. sudo mkdir /var/run/mysqld Give MySQL user permission to write to the service directory. sudo chown mysql: /var/run/mysqld Run the same command in step 2 to run MySQL in background. Run mysql -u root. You will get the MySQL console without entering a password. Run these commands FLUSH PRIVILEGES; For MySQL 5.7.6 and newer ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password'; For MySQL 5.7.5 and older SET PASSWORD FOR 'root'@'localhost' = PASSWORD('new_password'); If the ALTER USER command doesn't work use: UPDATE mysql.user SET authentication_string = PASSWORD('new_password') WHERE User = 'root' AND Host = 'localhost'; Now exit To stop the instance started manually: sudo kill `cat /var/run/mysqld/mysqld.pid` Restart MySQL sudo systemctl start mysql
在Mac上，如果你在使用安装时提供的第一个密码登录时遇到问题，也许你可以简单地关闭MySQL进程，然后再尝试。
So:
执行如下命令查看MySQL的PID: mysql | grep -v grep 终止进程: Kill -15[进程id]
可以使用初始密码登录:
mysql -uroot -p
它要求你输入密码。只需输入初始密码。
2021年。
回答Ubuntu 20.04 (Focal Fossa)(也可能是其他发行版)。
在四处游荡了几天之后…这些答案对我都没用，我就这么做了，而且成功了!
始终在Bash shell中:
sudo systemctl disable mysql
为了阻止守护进程在启动时启动。
sudo apt purge mysql-server
and
sudo apt purge mysql-community-server*
在那里，它警告你，你将删除配置文件…所以它起作用了!因为他们就是捣乱的人!
sudo autoremove
删除所有遗留的包。
然后重启(也许这是可选的，但我做到了)。 另外，我从MySQL官方网页下载了MySQL -server-8.0:
sudo apt install mysql-server
它正在工作的信号是，当您输入上面的命令时，系统要求您输入根密码。
最后:
mysql -u root -p
还有你之前输入的密码。
在我的情况下，我试图传递一个shell命令到docker容器。在这种情况下，只有第一个词被解释。确保你没有在运行:
mysql
相对于:
mysql -uroot -ppassword schemaname
也许可以试着引用:
'mysql -uroot -ppassword schemaname'
