I'm experiencing the same problem, but in Lucid (same key though):
W: GPG error: http://archive.canonical.com lucid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
System was fully upgraded (until today).
More info: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 10.04.4 LTS Release: 10.04 Codename: lucid
$ uname -a Linux vaughan 2.6.32-41-generic-pae #88-Ubuntu SMP Thu Mar 29 14:24:36 UTC 2012 i686 GNU/Linux
Regards.
I'm experiencing the same problem, but in Lucid (same key though):
W: GPG error: http:// archive. canonical. com lucid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
System was fully upgraded (until today).
More info:
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 10.04.4 LTS
Release: 10.04
Codename: lucid
$ uname -a 41-generic- pae #88-Ubuntu SMP Thu Mar 29 14:24:36 UTC 2012 i686 GNU/Linux
Linux vaughan 2.6.32-
Regards.