Upgrade authentication

[Peter Garrett]

On Sat, 23 Jun 2007 22:32:28 -0400
Bart Silverstrim <bsilver at chrononomicon.com> wrote:

> Is anyone else getting an error to the effect of, "these packages cannot 
> be authenticated"?  I have a notification that updates are available, 
> but when I check it the upgrade manager is saying that updates to items 
> like evolution-data-server and libcamel, etc, are NOT AUTHENTICATED. 

I have seen this occasionally. It is usually fixed by running 

sudo aptitude update 

before installing or upgrading. You can also try

sudo apt-key update

Sometimes just waiting a while can also correct it - presumably because
the repository has been synched.

Peter