> W: Erro GPG: http://archive.canonical.com precise Release: As seguintes assinaturas eram inválidas: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: Erro GPG: http://br.archive.ubuntu.com precise-backports Release: As seguintes assinaturas eram inválidas: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>