Just to show a workaround. It's really *UGLY* but worked for me: 1.- Download manually http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_xx.x.x.x.orig.tar.gz
2.- Make you root (sudo -i, su -, etc) 3.- Make a backup of /usr/bin/update-notifier/package-data-downloader: cp /usr/bin/update-notifier/package-data-downloader /usr/bin/update-notifier/package-data-downloader.bak 4.- Edit /usr/bin/update-notifier/package-data-downloader and replace this line: dest_file = urllib.urlretrieve(files[i])[0] by this one: dest_file = urllib.urlretrieve("/path/to/your/file/adobe- flashplugin_xx.x.x.x.orig.tar.gz")[0] 5.- Reinstall flashplugin-installer package: apt-get install --reinstall flashplugin-installer 6.- Recover the original package-data-downloader file: mv /usr/bin/update-notifier/package-data-downloader.bak /usr/bin/update-notifier/package-data-downloader -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820383 Title: package-data-downloader fails if apt is configured to use an http proxy that only supports package downloading To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/820383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs