Hello.

When I run apt-get update I get this:

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W: GPG error: http://us.archive.ubuntu.com breezy-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: You may want to run apt-get update to correct these problems
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Isn't that what I just did??? If I run it again, I get the same thing.

Does anyone know what the error message means and how I can correct the matter (if it can be corrected at my end)?

Thanks very much.

Try though I don't expect this will solve your problems. Another thing to do is to comment that server out of your configuration file, either in apt.conf or in apt.repos.d.

Hi.

Somebody on the Ubuntu forums had the solution. I couldn't comment out that repository as it an essential Ubuntu update source.

It turns out there has been some sort of change in the URL's. What worked is this:
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sudo gedit /etc/apt/sources.list from a terminal
when the list appears remove the "us." portion of the line in question only "us." not the entire line.
save the file and close out of it.
then
sudo apt-get update
That should do it.

It seems the country designations (us.) doesn't matter any more. although They re-appeared on me once out of nowhere--so keep an eye out.
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I thought I should let people know here.

Thanks very much.