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I use proxy to connect to the Internet. I am trying to upgrade to 12.10. The problem is that some(nearly all) packages are downloaded but some 3 Mb data is not downloading, due to which the upgradation aborts reporting a forbidden error. These are some files related to gnome-games and facebook integration. Facebook is blocked on the proxy server which i am using, so i guess the error appears due to that. I want to ask if there is any way i can skip downloading the last 3 Mb packages(which i don't need) so that my upgradation continues to Ubuntu 12.10? This is the error i am getting:

Failed to fetch 403  Forbidden
Failed to fetch 403  Forbidden
Failed to fetch 403  Forbidden
Failed to fetch 403  Forbidden
Failed to fetch 403  Forbidden
Failed to fetch 403  Forbidden
Failed to fetch 403  Forbidden
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marked as duplicate by Eric Carvalho, Jorge Castro, RolandiXor Aug 19 '13 at 16:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Put the exact error text here. Without it we can't help figure out how to fix this. – Thomas Ward Apr 14 '13 at 18:04
I have updated the post with the exact error – user149327 Apr 14 '13 at 18:08
Have you tried using a different archive mirror, perhaps one of the regional ones? (403s happen sometimes) – Thomas Ward Apr 14 '13 at 18:08
How do i do that? – user149327 Apr 14 '13 at 18:09
Go to System Settings--> Software Resources--> Ubuntu Software Tab, and change Download server. – Mitch Apr 14 '13 at 18:14

If you don't want to upgrade/install those packages, is actually very easy. If you don't use them just uninstall them:

sudo apt-get remove <packages to remove>

To prevent that they try to get installed/upgraded you could put them on hold:

echo <package> hold | sudo dpkg --set-selections
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