franchi:~# apt-get update
Get: 1 http://ftp.us.debian.org sarge Release.gpg [378B]
Get: 2 http://security.debian.org sarge/updates Release.gpg [189B]
Get: 3 http://ftp.us.debian.org sarge Release [34.6kB]
Get: 4 http://security.debian.org sarge/updates Release [18.1kB]
Ign http://security.debian.org sarge/updates Release
Ign http://ftp.us.debian.org sarge Release
Ign http://security.debian.org sarge/updates/main Packages
Ign http://ftp.us.debian.org sarge/main Packages
Ign http://security.debian.org sarge/updates/contrib Packages
Ign http://security.debian.org sarge/updates/non-free Packages
Ign http://ftp.us.debian.org sarge/non-free Packages
Ign http://ftp.us.debian.org sarge/contrib Packages
Get: 5 http://security.debian.org sarge/updates/main Packages [423kB]
Get: 6 http://ftp.us.debian.org sarge/main Packages [4523kB]
Get: 7 http://security.debian.org sarge/updates/contrib Packages [621B]
Get: 8 http://security.debian.org sarge/updates/non-free Packages [1431B]
Get: 9 http://ftp.us.debian.org sarge/non-free Packages [76.6kB]
Get: 10 http://ftp.us.debian.org sarge/contrib Packages [74.0kB]
Fetched 5152kB in 1m8s (75.7kB/s)
Reading package lists... Done
W: GPG error: http://security.debian.org sarge/updates Release: Couldn't access keyring: 'No such file or directory'
W: GPG error: http://ftp.us.debian.org sarge Release: Couldn't access keyring: 'No such file or directory'
W: You may want to run apt-get update to correct these problems