14.04 seems subject to bug 1046563 with update-manager/notifier
lubuntu at prpcompany.com
Wed May 7 19:13:27 UTC 2014
I don't find the issue in the Lubuntu or Ubuntu 14.04 Release Notes, but
it seems like 14.04 is subject to
reported for 12.04, in which automatic updating fails.
I was noticing that I wasn't being prompted to install software
updates. I ran Software Updater (update-manager) manually once and got
a big batch of updates. I ran it manually again today and it identified
another batch that I could get. It included updates for Software
Updater, so perhaps that will fix the problem.
There is a big discussion of the problem at
http://ubuntuforums.org/showthread.php?t=2222325. And beyond the
notification problem, a number of people report seeing big differences
between the updates identified by update-manager and Synaptic.
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