The symptoms described were caused by missing configuration in squid-deb-proxy (used as the apt proxy for the build). Puppet labs URL needed to be added to the exemption list. So this is not a bug but behaviour as designed. Please close this bug, I have marked it as invalid.
** Changed in: debian-installer (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1313171 Title: apt-setup repo with GPG KEY fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1313171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs