Hi,

First, i'm a big newbie in lamp system. So i run a cron each day* to update my linode. I received this morning this report. I noticed on Google than a lot of people are speaking about this BADSIG.

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ftp.us.debian.org squeeze-updates Release: The following signatures were invalid: BADSIG AEDB06F473041FA Debian Archive Automatic Signing Key (6.0/squeeze) <ftpmaster@debian.org>

W: Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze-updates/Release  

W: Some index files failed to download, they have been ignored, or old ones used instead.
Reading package lists...
Building dependency tree...
Reading state information...
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

 *apt-get update >/dev/null && apt-get -y --force-yes dist-upgrade

How to resolve this ? Thanks.
Florent

same error with putty : apt-get update && apt-get upgrade

root@xxxx:/home/webmaster# apt-get update && apt-get upgrade
Hit http://security.debian.org squeeze/updates Release.gpg
Ign http://security.debian.org/ squeeze/updates/main Translation-en
Ign http://security.debian.org/ squeeze/updates/main Translation-en_US
Hit http://security.debian.org squeeze/updates Release
Hit http://security.debian.org squeeze/updates/main Sources
Hit http://security.debian.org squeeze/updates/main i386 Packages
Hit http://ftp.us.debian.org squeeze Release.gpg
Ign http://ftp.us.debian.org/debian/ squeeze/main Translation-en
Ign http://ftp.us.debian.org/debian/ squeeze/main Translation-en_US
Get:1 http://ftp.us.debian.org squeeze-updates Release.gpg [836 B]
Ign http://ftp.us.debian.org/debian/ squeeze-updates/main Translation-en
Ign http://ftp.us.debian.org/debian/ squeeze-updates/main Translation-en_US
Hit http://ftp.us.debian.org squeeze Release
Get:2 http://ftp.us.debian.org squeeze-updates Release [113 kB]
Get:3 http://ftp.us.debian.org squeeze-updates Release [113 kB]
Err http://ftp.us.debian.org squeeze-updates Release

Hit http://ftp.us.debian.org squeeze/main Sources
Hit http://ftp.us.debian.org squeeze/main i386 Packages
Fetched 81.5 kB in 1min 1s (1,323 B/s)
Reading package lists... Done
W: A error occurred during the signature verification. The repository is not update                        d and the previous index files will be used. GPG error: http://ftp.us.debian.org sq                        ueeze-updates Release: The following signatures were invalid: BADSIG AED4B06F4730                      FA Debian Archive Automatic Signing Key (6.0/squeeze) <ftpmaster@debian.org>

W: Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze-updates/Release

W: Some index files failed to download, they have been ignored, or old ones used in                        stead.
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

streaming learning : i edited /etc/apt/sources.list and change with the UK mirror (my linode is locate in Uk) and didn't meet the problem.