我在Ubuntu 12.04 LTS (Precise穿山甲)上安装了LAMP，然后在phpMyAdmin上设置根密码。我忘记密码了，现在无法登录。当我试图通过终端更改密码时，我得到:
错误2002 (HY000):无法通过套接字连接到本地MySQL服务器 ' / var /运行/ mysqld / mysqld。袜子”(2)
我该如何解决这个问题?我无法打开LAMP，卸载它或重新安装它。
当前回答
您应该验证/var/run/mysqld.的组的所有者如果不是mysql。Mysql，然后做:
su root
chown mysql.mysql /var/run/mysqld
其他回答
This error can also occur if you try to change the directory where the database is stored, but imput the wrong directory in the configuration file (like a typo in the second drive as D instead of the accurate D_). Instead of telling you the typo directory does not exist, it will tell you that you lack permission to access it (leading you to try to change the permissions for the typo directory, which it will let you do). So if you get this error while changing directories, double check the configuration file and make sure you don't have a typo.
安装mysql-server解决了这个问题
sudo apt-get install mysql-server
我也遇到了同样的问题，问题是mysql服务器已经安装，但它没有运行。
试, 启动mysql服务 或 启动mysql
尝试重新启动服务器
sudo /usr/local/mysql/support-files/mysql.server start
如果出现任何错误，请按照以下步骤进行操作
mysqld
您将看到下面的日志。注意MySQL目录中突出显示的部分
mysqld: Can't change dir to '/usr/local/mysql-5.7.14-osx10.11-x86_64/data/' (Errcode: 13 - Permission denied) 2016-10-04T14:09:19.392581Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2016-10-04T14:09:19.392847Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Consider setting it to a valid, non-empty path. 2016-10-04T14:09:19.392921Z 0 [Note] mysqld (mysqld 5.7.14) starting as process 1402 ... 2016-10-04T14:09:19.397569Z 0 [Warning] Can't create test file /usr/local/mysql-5.7.14-osx10.11-x86_64/data/Sudharshan.lower-test 2016-10-04T14:09:19.397597Z 0 [Warning] Can't create test file /usr/local/mysql-5.7.14-osx10.11-x86_64/data/Sudharshan.lower-test 2016-10-04T14:09:19.397712Z 0 [ERROR] failed to set datadir to /usr/local/mysql-5.7.14-osx10.11-x86_64/data/ 2016-10-04T14:09:19.397776Z 0 [ERROR] Aborting 2016-10-04T14:09:19.397795Z 0 [Note] Binlog end 2016-10-04T14:09:19.397925Z 0 [Note] mysqld: Shutdown complete
sudo chown -R _mysql:_mysql /usr/local/mysql-5.7.14-osx10.11-x86_64
注意前面日志中的MySQL文件夹路径/usr/local，在我的例子中，它是MySQL -5.7.14-osx10.11-x86_64，您必须根据您在计算机上获得的日志更新它，以提供对MySQL目录的读访问
sudo /usr/local/mysql/support-files / mysql。服务器启动
启动MySQL 成功!
我以前在Kubuntu 20.04中遇到过这个问题。我的解决办法就是跑:
sudo dpkg --configure -a
原因是dpkg崩溃了。
我以前也遇到过这个问题，我通过跑步解决了它:
sudo /etc/init.d/mysql start
我想服务停止了。
