错误1045(28000):拒绝访问用户'root'@'localhost'(使用密码:YES)

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

你必须重设密码!Mac OS X(已测试并正在运行)和Ubuntu的步骤:

停止使用MySQL

sudo service mysql stop

sudo /usr/local/mysql/support-files/mysql.server stop

以安全模式启动:

sudo mysqld_safe --skip-grant-tables --skip-networking

(上面一行是整个命令)

这将是一个持续的命令，直到进程结束，所以打开另一个shell/终端窗口，登录没有密码:

mysql -u root

mysql> UPDATE mysql.user SET Password=PASSWORD('password') WHERE User='root';

根据@IberoMedia的评论，对于新版本的MySQL，该字段被称为authentication_string:

mysql> UPDATE mysql.user SET authentication_string =PASSWORD('password') WHERE User='root';

启动MySQL使用:

sudo service mysql start

sudo /usr/local/mysql/support-files/mysql.server start

你的新密码是“password”。

注意:对于MySQL > 5.7版本，请尝试以下操作:

update mysql.user set authentication_string='password' where user='root';

2014-09-17 06:44:25

其他回答

从这个链接复制，我有同样的问题，这解决了问题。在我们为数据库添加密码之后，我们需要添加-p(基于密码的登录)，然后输入密码。否则，它将返回以下错误:

mysql -u root -p

2020-11-05 08:07:46

我使用Ubuntu 16.04 (Xenial Xerus)和安装MySQL 5.7。

我也有同样的问题

禁止root用户登录。

我尝试了以下步骤:

get-select | grep mysql(获取mysql版本)。 dpkg-reconfigure mysql -服务器- 5.7 Mysql -u root -p

如果没有-p，则不会提示您询问密码。进入后，您可以按照以下步骤创建一个带有密码的用户:

CREATE USER 'your_new_username'@'your-hostname' IDENTIFIED BY 'your-password';

GRANT ALL PRIVILEGES ON *.* to 'your_new_username'@'your-hostname' WITH GRANT OPTION;

从根目录退出，从上面给出的<name>登录。

mysql -u <your_new_username> -p

由于某种原因，仍然不能输入MySQL。在所有。我建议养成使用mysql -u <name> -p的习惯。

2017-06-21 15:21:47

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

2018-02-12 14:25:38

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: