Some of you might have a problem with missing PGP keys, which exposes this bug in a big way. That's because in that case all packages from an affected software source would be 'untrusted', as PGP keys are used to authenticate them.
If that's the case, you might get it fixed by: cd /var/lib/apt sudo mv lists lists.old sudo mkdir -p lists/partial sudo apt-get update It worked fine for me. When you satisfy yourself that everything works fine, you can then delete the lists.old folder (it was taking about 70MB on my fresh 11:10 installation): cd /var/lib/apt sudo rm -r lists.old Source: http://askubuntu.com/questions/70553/software-center-not-downloading -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/705988 Title: [master] Untrusted packages can not be installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/705988/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
