Problemas con apt-get update

[Fidel Dominguez-Valero]

Saludos amigos.
No acostumbro a escribir mucho pero es q me dio el siguiente error
cuando ejecute;
#apt-get update

Get:1 file: hardy Release.gpg [189B]
Ign file: hardy/main Translation-en_US
Ign file: hardy/universe Translation-en_US
Ign file: hardy/multiverse Translation-en_US
Ign file: hardy/restricted Translation-en_US
Get:2 file: hardy-security Release.gpg [189B]
Ign file: hardy-security/main Translation-en_US
Ign file: hardy-security/universe Translation-en_US
Ign file: hardy-security/multiverse Translation-en_US
Ign file: hardy-security/restricted Translation-en_US
Get:3 file: hardy-updates Release.gpg [189B]
Ign file: hardy-updates/main Translation-en_US
Ign file: hardy-updates/universe Translation-en_US
Ign file: hardy-updates/multiverse Translation-en_US
Ign file: hardy-updates/restricted Translation-en_US
Get:4 file: hardy-backports Release.gpg [189B]
Ign file: hardy-backports/main Translation-en_US
Ign file: hardy-backports/universe Translation-en_US
Ign file: hardy-backports/multiverse Translation-en_US
Ign file: hardy-backports/restricted Translation-en_US
Get:5 file: hardy-proposed Release.gpg [189B]
Ign file: hardy-proposed/main Translation-en_US
Ign file: hardy-proposed/universe Translation-en_US
Ign file: hardy-proposed/multiverse Translation-en_US
Ign file: hardy-proposed/restricted Translation-en_US
Get:6 file: hardy Release.gpg [307B]
Ign file: hardy/main Translation-en_US
Get:7 file: hardy Release.gpg [197B]
Ign file: hardy/free Translation-en_US
Ign file: hardy/non-free Translation-en_US
Get:8 file: hardy Release [65.9kB]
Get:9 file: hardy-security Release [58.5kB]
Get:10 file: hardy-updates Release [58.5kB]
Get:11 file: hardy-backports Release [44.0kB]
Get:12 file: hardy-proposed Release [58.5kB]
Get:13 file: hardy Release [27.6kB]
Get:14 file: hardy Release [11.7kB]
Ign file: hardy Release    
Reading package lists... Done
W: GPG error: file: hardy Release: The following signatures couldn't be
verified because the public key is not available: NO_PUBKEY
60D11217247D1CFF
W: You may want to run apt-get update to correct these problems

Ahora bien esto fue despues de actualizar el repo local, ejecute mis
script de actualizacion y listo.

Necesito ayuda
Gracias de antemano
salu2
fdvalero