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
对于WSL2，我输入以下命令
sudo mysql -u root -p
它提示我输入密码，我假设这一步是设置密码。我输入了一个随机字符串，然后就可以访问MySQL提示符了。 这可能不是正确的答案，但至少可以帮助你开始
其他回答
我在Ubuntu 18.04 (Bionic Beaver) LTS和MySQL服务器版本5.7.27-0ubuntu0.18.04.1 (Ubuntu)时遇到了这个问题。
我的解决方案是(以root身份运行sudo -i):
mysql <<-EOSQL
use mysql;
update user set plugin="mysql_native_password" where User='root';
FLUSH PRIVILEGES;
EOSQL
mysqladmin -u root password new_pw
我使用的是mysql-5.7.12-osx10.11-x86_64。dmg在Mac OS X上。
安装过程会自动为root用户设置一个临时密码。你应该保存密码。密码不可恢复。
按照说明操作:
Go to cd /usr/local/mysql/bin/ Enter the temporary password (which would look something like, "tsO07JF1=>3") You should get the mysql> prompt. Run, SET PASSWORD FOR 'root'@'localhost' = PASSWORD('{YOUR_PASSWORD}'); If you wish to set your password: "root" then the command would be, SET PASSWORD FOR 'root'@'localhost' = PASSWORD('root'); Run ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER; Run exit Run ./mysql -u root -p Type your password. In my case I would type, "root" (without quote) That's all.
为了方便起见，您应该在PATH环境变量中添加“/usr/local/mysql/bin”。
现在你可以在任何地方输入。/mysql -u root -p，然后输入密码，你会得到mysql>提示。
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。
在服务器初始启动时，假设服务器的数据目录为空，会发生以下情况:
完成服务器的初始化。 在data目录下生成SSL证书和密钥文件。 安装并启用validate_password插件。 创建超级用户帐户“root”@“localhost”。超级用户的密码被设置并存储在错误日志文件中。 要显示它，使用以下命令:
Shell > sudo grep '临时密码' /var/log/mysqld.log
请使用临时密码登录，并自定义超级用户密码，尽快修改root用户密码:
Shell > mysql的root -p
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass5!
在Ubuntu 16.04 (Xenial Xerus)和MySQL 5.7.13版本中，我能够通过以下步骤解决这个问题:
Follow the instructions from section B.5.3.2.2 Resetting the Root Password: Unix and Unix-Like Systems MySQL 5.7 reference manual When I tried #sudo mysqld_safe --init-file=/home/me/mysql-init & it failed. The error was in /var/log/mysql/error.log: 2016-08-10T11:41:20.421946Z 0 [Note] Execution of init_file '/home/me/mysql/mysql-init' started. 2016-08-10T11:41:20.422070Z 0 [ERROR] /usr/sbin/mysqld: File '/home/me/mysql/mysql-init' not found (Errcode: 13 - Permission denied) 2016-08-10T11:41:20.422096Z 0 [ERROR] Aborting
mysql-init的文件权限不是问题。我们需要编辑AppArmor权限。
Edit by sudo vi /etc/apparmor.d/usr.sbin.mysqld .... /var/log/mysql/ r, /var/log/mysql/** rw, # Allow user init file /home/pranab/mysql/* r, # Site-specific additions and overrides. See local/README for details. #include <local/usr.sbin.mysqld> } Do sudo /etc/init.d/apparmor reload Start mysqld_safe again. Try step 2 above. Check file /var/log/mysql/error.log. Make sure there is no error and the mysqld is successfully started. Run mysql -u root -p Enter password: Enter the password that you specified in mysql-init. You should be able to log in as root now. Shutdown mysqld_safe by sudo mysqladmin -u root -p shutdown Start mysqld the normal way by sudo systemctl start mysql
