How can I upgrade to 10.10 from 10.10 beta

Posted by n179911 on Ask Ubuntu See other posts from Ask Ubuntu or by n179911
Published on 2010-10-11T00:53:17Z Indexed on 2010/12/29 11:02 UTC
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Can you please tell me how can I upgrade to ubuntu 10.10 release from ubuntu 10.10 beta? I have go to update manager, it keeps saying there is no update. And what I go to synaptic package manager, I see this error:

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://extras.ubuntu.com maverick Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/maverick/Release  

W: Some index files failed to download, they have been ignored, or old ones used instead.

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