mysql-server:取决于: mysql-server-5.5，但它不会被安装

Question

我在VirtualBox上使用的是ubuntu14.04。我尝试使用命令sudo apt安装mysql-server安装mysql-server，我总是遇到如下错误：

Some packages could be installed .This may mean that you have 
request an impossible  situation or if you are using the unstable
distribution that some required packages have not yet been created 
or been moved out of Incoming.
The following packages have unmet dependencies:
mysqsl-server : Depends: mysql-server-5.5 but it is not going to be installed
E:Unable to correct problems, you have held broken packages.

然后我尝试使用如下命令：

sudo apt-get update
sudo apt-get upgrade
sudo apt-get clean
sudo apt-get autoclean
sudo apt-get purge mysql-server*
sudo apt-get install mysql-server

但还是出错了。请帮帮我!

Answer 1

mysql-server-5.6也有同样的问题。要解决这个问题，我必须用sudo apt-get remove mysql-client mysql-server删除所有mysql包，然后用sudo apt-get install mysql-server-<version>重新安装mysql。