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

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。

其他回答

我的服务器存储空间已满,导致Mysql无法启动。从这里得到了灵感。增加高清和重新启动修复了这个问题。

解决方案1 清除(或删除如果你想保留数据库)任何mysql包,重新重复安装:

sudo apt purge "mysql*"

-Autoremove包

sudo apt autoremove

-停止apparmor服务

sudo systemctl stop apparmor

-让apparmor放弃它的配置文件(我以为用stop就够了,但对我来说不是。systemctl不起作用)

sudo service apparmor teardown

重新安装mysql服务器

sudo apt install mysql-server

安装apparmor-utils,在apparmor中为mysql创建一个允许mysql运行的配置文件

sudo apt install apparmor-utils

检查mysql-server的状态(必须是Active(running))

sudo systemctl status mysql

在apparmor中生成mysql的配置文件

sudo aa-genprof mysql

在其他终端运行mysql(输入root密码)

mysql -u root -p

当apparmor在另一个终端生成配置文件时,在MySQL中执行-do操作

创建数据库中的食物

-切换到另一个终端,按“s”(提示说这是“扫描”)

-对你认为合适的apparmor的政策说“是”(我猜所有的mysql),说“是”按“a”允许

-按“f”完成apparmor配置文件

-重启apparmor服务

sudo systemctl start apparmor

检查一下你是否可以在其他终端上使用mysql

Mysql>exit

mysql -u root -p

如果一切正常,您可以从命令行使用mysql。

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.

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!

而不是使用localhost:

mysql -u myuser -pmypassword -h localhost mydatabase

使用127.0.0.1

mysql -u myuser -pmypassword -h 127.0.0.1 mydatabase

(注意,-p和mpassword之间没有空格)

享受:)