Binary package hint: update-manager
I have Update Manager set to "check for updates Daily" and "install security updates without confirmation". Currently, I am not receiving any notification of updates, even though when I start the Update Manager manually, I can see that there are many updates each day.
Steps to reproduce:
1. Install Ubuntu 10.04.
2. Log in to the new Ubuntu installation for the first time.
3. In "Software Sources" > "Updates", choose "Check for updates: Daily" and "Install security updates without confirmation".
4. Set the system clock forward one day.
5. Wait for ten minutes.
What should happen: Update Manager opens, displaying only non-security updates.
What actually happens: Nothing. Upon opening update-manager manually, one can see that there are indeed updates available (including Security Updates).
This was tested using a fresh installation of Ubuntu on Virtualbox.
Date: Tue Jun 8 22:43:18 2010
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
Package: update-manager 1:0.134.7
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 126.96.36.199+drm33.2
Uname: Linux 2.6.32-21-generic x86_64