It appears to be a duplicate of 78673, although for me it was failing with no /root/.gnupg directory rather than ~/.gnupg
-- update-manager -d fails to upgrade from 6.10 to 7.04 due to download problems https://launchpad.net/bugs/82464 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
