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
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。
其他回答
我所面临的错误是:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
这是一个端口运行的问题。
默认情况下，MySQL运行在3306端口上。
你可以通过运行来检查
在32位系统中: sudo / opt / lampp / manager-linux.run 在64位系统中: sudo / opt / lampp / manager-linux-x64.run
然后点击Configure按钮。
在我的示例中，端口运行在3307上，我使用了该命令
mysql -u root -p -P 3307 -h 127.0.0.1
在my.cnf文件的底部添加以下两行代码:
[mysqld]
skip-grant-tables
这应该有用。
如果问题仍然存在，请尝试强制修改密码:
/etc/init.d/mysql stop
mysqld_safe --skip-grant-tables &
mysql -u root
设置新的MySQL root用户密码:
use mysql;
update user set password=PASSWORD("NEW-ROOT-PASSWORD") where User='root';
flush privileges;
quit;
停止MySQL服务器:
/etc/init.d/mysql stop
启动MySQL服务器并测试它:
mysql -u root -p
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。
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
