在 Ubuntu 14.04 上安装 CUDA 时出现包依赖问题

Question

我尝试按照此链接上的说明在Ubuntu 14.04 上安装 CUDA，但是在这一步中我遇到了包依赖问题：

~/Downloads$ sudo apt-get install cudaReading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested 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 information may help to resolve the situation:

The following packages have unmet dependencies:
 cuda : Depends: cuda-7-0 (= 7.0-28) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

有人知道可能是什么问题吗？

Answer 1

选项 1：apt-get

1. 安装未满足的依赖项

   sudo apt-get install cuda-runtime-7-0
   ...
   <more unmet dependencies>
   ....
   sudo apt-get install cuda-7-0
   

2. 安装主包

   sudo apt-get install cuda
   

选项2：能力

1. 安装能力

   sudo apt-get install aptitude
   

2. 安装主包

   sudo aptitude install cuda