W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://ph.archive.ubuntu.com hardy-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
W: Some index files failed to download, they have been ignored, or old ones used instead.
Is this a bug, Because i can't upgrade my obuntu. What shal i do?
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http:// ph.archive. ubuntu. com hardy-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
W: Failed to fetch http:// ph.archive. ubuntu. com/ubuntu/ dists/hardy- updates/ Release
W: Some index files failed to download, they have been ignored, or old ones used instead.
Is this a bug, Because i can't upgrade my obuntu. What shal i do?