I got:
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://de.archive.ubuntu.com jaunty-proposed Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
Replacing de.archive.ubuntu.com with archive.ubuntu.com in the line containing jaunty proposed fixed this
for me. May there is a problem on the de (germany) mirror?
I got: de.archive. ubuntu. com jaunty-proposed Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://
Replacing de.archive. ubuntu. com with archive.ubuntu.com in the line containing jaunty proposed fixed this
for me. May there is a problem on the de (germany) mirror?