如何从Ubuntu 14.04中删除MySQL？

我试图移动我的datadir在一个工作的MySql安装，显然我搞砸了。

我试图卸载/重新安装无数次，只有在重新安装时得到相同的错误。

mysql / error.log给我这个：

150118 11:54:44 [Note] Plugin 'FEDERATED' is disabled. 150118 11:54:44 InnoDB: The InnoDB memory heap is disabled 150118 11:54:44 InnoDB: Mutexes and rw_locks use GCC atomic builtins 150118 11:54:44 InnoDB: Compressed tables use zlib 1.2.8 150118 11:54:44 InnoDB: Using Linux native AIO 150118 11:54:44 InnoDB: Initializing buffer pool, size = 128.0M 150118 11:54:44 InnoDB: Completed initialization of buffer pool 150118 11:54:44 InnoDB: Operating system error number 13 in a file operation. InnoDB: The error means mysqld does not have the access rights to InnoDB: the directory. InnoDB: File name ./ibdata1 InnoDB: File operation call: 'create'. InnoDB: Cannot continue operation. 

我已经变成了chmod和chmodded，直到我在脸上蓝色，无论如何我得到同样的错误。 我也跟着如何卸载MySQL的许multithreading，只有重新安装有相同的结果。

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安装尝试后，我得到这个错误：

 Setting up mysql-server-5.5 (5.5.40-0ubuntu0.14.04.1) ... 150118 11:58:01 [Warning] Can't create test file /var/lib/mysql/yosemite.lower-test 150118 11:58:01 [Warning] Can't create test file /var/lib/mysql/yosemite.lower-test start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing package mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however: Package mysql-server-5.5 is not configured yet. dpkg: error processing package mysql-server (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: mysql-server-5.5 mysql-server E: Sub-process /usr/bin/dpkg returned an error code (1) 

MySQL是/ var / lib / mysql /的所有者，文件权限应该允许写入。

我不需要保存任何数据库，我只需要杀死这个东西，并重新安装和工作！

任何帮助将非常感激，提前感谢！

RW