W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://sa.archive.ubuntu.com hardy-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
nslookup sa.archive. ubuntu. com
Server: 192.168.1.254
Address: 192.168.1.254#53
Non-authoritative answer: ubuntu. com ubuntu. com ubuntu. com
Name: sa.archive.
Address: 91.189.88.31
Name: sa.archive.
Address: 91.189.88.45
Name: sa.archive.
Address: 91.189.88.46
as@m7md-desktop:~# apt-get update
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http:// sa.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:// sa.archive. ubuntu. com/ubuntu/ ...pdates/ Release
W: Some index files failed to download, they have been ignored, or old ones used instead