How does one force the use of a repository?

[Jordon Bedwell]

On 6/7/2011 2:58 PM, James Gifford wrote:
> I asked this question on AskUbuntu[1] (Because I don't personally know
> the answer), and according to a comment that was left, it means that
> the repository data is up-to-date and you don't have to worry about
> it.
> 
> [1] http://askubuntu.com/questions/47533/how-can-i-force-the-usage-of-a-repository

I've updated the thread with an answer[1] and provided an example of PPA
pins with branch pins so you can specifically target experimental branch.

A few years ago if you got an ign it could have been ambiguous as it
would ign on a 404, but now it flat out tells you if there was a 404
error so you can go from there.

[1]
http://askubuntu.com/questions/47533/how-can-i-force-the-usage-of-a-repository/47540#47540