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Re: Using apt to install only one package

On Mon,14.Jul.08, 20:15:45, andy wrote:
> Hi
> I am running Lenny/Testing and with the recent package updates a new set  
> of kernel headers was installed which has completely screwed my nVidia  
> driver settings. I had to reboot into 2-6-24 rather than the 2-6-25 in  
> order to get GDM to work.

This I don't understand. AFAIK the headers are used only when compiling, 
how could updating them screw with nvidia driver *settings*? Maybe some 
other packages were upgraded as well?

> When I went to change the sources list to enable me access the  
> appropriate nVidia driver from the Sid repositories using apt, there  
> were any number of packages that apt wanted to install as well,  
> alongside the nVidia.

Of course. Apt will always want to install the newest package, but 
according to priority, see below.

> What is the correct syntax to ensure that when I am wanting to install  
> the nVidia driver from Sid I limit it to *only* the package(s) I am  
> seeking rather than everything else that apt wants me to install? I've  
> spent the last 1/2 hour or Googling this and I can't find an answer.  
> Perhaps my search string is incorrect, but even so if anyone is able to  
> assist me, that would be great.

Add a line like this:

APT::Default-Release "testing";

to your /etc/apt/apt.conf. If the file doesn't exist you can create it.  
The you can use 'aptitude install -t my_sid_package' to install a 
package from sid, but also any required dependencies.

You can check the setting works by running 'apt-cache policy'. You 
should get priority 990 for testing and 500 for unstable.

If you can't explain it simply, you don't understand it well enough.
(Albert Einstein)

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