[Bug 790538] Re: cron gives "Module is unknown" in syslog, stops working

[sun]

For the moment I performed:

apt-cache policy libpam-modules

which provided data about which old versions are available on my system.
So that I could run 

apt-get install libpam-modules=1.1.1-2ubuntu2

rolling back from 1.1.1-2ubuntu5.2 to 1.1.1-2ubuntu2

in my case on the Lucid System.

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https://bugs.launchpad.net/bugs/790538

Title:
  cron gives "Module is unknown" in syslog, stops working

Status in “pam” package in Ubuntu:
  Confirmed

Bug description:
  Upgrading libpam-modules from 1.1.1-4ubuntu1 to 1.1.1-4ubuntu2.2, cron stopped working, just gives a log message "Module is unknown". This happened during unattended-upgrades this night, so there might be a lot of people who didn't realize that yet.
  Downgrading to 1.1.1-4ubuntu1 fixes this.
  Ubuntu 10.10 amd64, almost vanilla, fresh, minimum install + java (ppa) + postgresql9 (ppa).