ERROR 2002 (HY000): Can't connect to local MySQL server

Question

I installed LAMP on Ubuntu and then set root password on phpMyAdmin. I forgot the password and now I am unable to login. When I try to change password through terminal I get this error.
How can I fix this? I am unable to open LAMP, uninstall it, or reinstall it.

Linux Help · Answer

Make sure that you have installed the  mysql-server, not the mysql-client or something else.error means the file /var/run/mysqld/mysqld.sock doesn't existsHenceInstall it using following command sudo apt-get install mysql-server
But if the mysql-server is already installed and is running, then you need to check the config files.The config files are:
The config files are:
/etc/my.cnf
/etc/mysql/my.cnf
/var/lib/mysql/my.cnf
Let the mysql use the /etc/my.cnf by renaming the /etc/mysql/my.cnf.Then prob may solve.