It seems to be an issue with the pt mirror of the Ubuntu archive as if you go to the main mirror you can access the deb file mentioned in comment #6.
http://archive.ubuntu.com/ubuntu/pool/universe/g/gmp4/ Regardless this is not a bug in update-manager but rather the mirror. ** Changed in: update-manager (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874190 Title: Could not download the upgrades To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/874190/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
