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It seems that security updates and other package updates are not automatically installed in Juju nodes. I assume that they are installed at installation of new Juju machines, or that the installation media is a daily updated version of Ubuntu.

How do I ensure that updates are installed in all machines?

And what about reboots to install kernel updates?

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I think currently the options are:

This might be discussed here:


  • Global environment/service/machine option to do automatic updates
  • Unattended updates subordinate charm to associate with nodes I want to automatically update. Seems it is made here: and it waiting to be included in Charm store.
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can't you do this with a cron job as well? – don.joey Mar 1 '13 at 10:56
Where would that cron job run then? Somewhere and then log into all instances and do the updates? Remember that services could consist of many units and frequently be removed and added. – Marius K Mar 1 '13 at 14:15
Hmm, hours after I enabled unattended upgrades, I still see "5 packages can be updated. 5 updates are security updates."... – Marius K Mar 1 '13 at 14:31

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