Whilst investigating another problem I've just realized that the behaviour described above for apt-get --simulate update appears to be caused by the ordering of repos in /etc/apt/sources.list. If the lucid/karmic security repo is listed first, apt-get --simulate update reports that there are a mix of security and non-essential updates required. If the lucid/karmic updates repo is listed first (and the security updates repo is second), apt-get --simulate update reports that there are no security updates available but the same number of non- essential security updates. Altering the repo order will change the behaviour of apt-get update.
Whether this is a design issue in apt-get, or a race condition, it seems to be this that causes the disparity between apt-get and update-notifier (and which will also break Nagios checks using the Ubuntu bundled nagios-check-apt-updates script for pending security updates, or any other similar tools that attempt to hook the same reporting mechanism). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/674534 Title: Update-notifier incorrectly reports security updates (including on login) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
