业界良心之拯救mysql

我的mysql5.5出了问题， 我忙了一天去解决它，心情很不好，因为我花了一天时间去解决一个工具的问题。百度了一下， 100000个搜索结果可能只有那一个版本，心情更不好了，终于明白为什么有人说百度是程序员的坟墓。 

结果是我在stackoverflow上找到了答案，上面的大神们，真心是业界良知。

回到这个问题上，我修改了my.cnf文件，应该是配置错误了，然后mysqld.sock文件消失，我不太了解其中的问题，在这里就不胡扯了，重新安装报错是

Unable to set password for the MySQL "root" An error occurred while setting the password for the MySQL administrative user. This may have happened because the account already has a password, or because of a communication problem with the MySQL server. You should check the account's password after the package installation. Please read the /usr/share/doc/mysql-server-5.5/README.Debian file for more information. 

运行或启动mysql报错：

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'

最后的解决办法是:

1.dpkg --remove mysql-server-5.5

or just

dpkg --remove mysql-server

2.sudo apt-get purge -f mysql-server mysql-common

3.sudo apt-get install mysql-server mysql-common

其它可能有用的方法：

sudo apt-get remove apparmor 
and then re-attempt the installation with mysql-common package:

sudo apt-get install mysql-common mysql-server