Ubuntu
apt package

update error message

Asked by Zoran Mirosevic

I'm running Natty narval, today after update I've got following error message:

(Quote)
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.canonical.com natty Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/natty/Release
(Unquote)

Since I've installed Natty Narval I've got no such error while updating Synaptic.

Is it a big problem?
How can I fix it?

Thanks in advance

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Zoran Mirosevic
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actionparsnip (andrew-woodhead666) said : 		#1

sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com 40976EAF437D05B5

Should do it

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Zoran Mirosevic (zoran-mirosevic) said : 		#2

thanks actionparsnip, it did it! :-)

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actionparsnip (andrew-woodhead666) said : 		#3

When you add repos, you need the GPG key to authenticate the new repo. Its not essential but it makes life smother. If you add PPAs in the new style (using 'add-apt-repository' instead of editting sources.list) you won't get this as it will all be handled for you