Solved. It was something weird my university's authenticating proxy was doing. By changing /etc/apt/apt.conf to proxy differently it worked. (would this be an old version of a signature on the proxy not being replaced?).
Thanks Tom - I did have the key in my apt-key list ... pub 4096R/473041FA 2010-08-27 [expires: 2018-03-05] uid Debian Archive Automatic Signing Key (6.0/squeeze) < ftpmas...@debian.org> On 23 March 2012 00:41, Tom H <tomh0...@gmail.com> wrote: > lOn Wed, Mar 21, 2012 at 11:32 PM, Robert King > <robert.k...@newcastle.edu.au> wrote: > > > > What am I doing wrong here? I am getting the above error on apt-get > update > > > > solzhenitsyn:~# apt-get update > > Get:1 http://security.debian.org squeeze/updates Release.gpg [836 B] > > Hit http://ftp.au.debian.org squeeze Release.gpg > > Ign http://security.debian.org/ squeeze/updates/contrib Translation-en > > Ign http://security.debian.org/ squeeze/updates/contrib > Translation-en_AU > > Ign http://security.debian.org/ squeeze/updates/main Translation-en > > Ign http://security.debian.org/ squeeze/updates/main Translation-en_AU > > Ign http://security.debian.org/ squeeze/updates/non-free Translation-en > > Ign http://security.debian.org/ squeeze/updates/non-free > Translation-en_AU > > Get:2 http://security.debian.org squeeze/updates Release [86.9 kB] > > Ign http://security.debian.org squeeze/updates Release > > Ign http://security.debian.org squeeze/updates/main amd64 > Packages/DiffIndex > > Ign http://security.debian.org squeeze/updates/contrib amd64 > > Packages/DiffIndex > > Ign http://security.debian.org squeeze/updates/non-free amd64 > > Packages/DiffIndex > > Hit http://security.debian.org squeeze/updates/main amd64 Packages > > Hit http://security.debian.org squeeze/updates/contrib amd64 Packages > > > > Hit http://security.debian.org squeeze/updates/non-free amd64 Packages > > > > Ign http://ftp.au.debian.org/debian/ squeeze/contrib Translation-en > > > > Ign http://ftp.au.debian.org/debian/ squeeze/contrib Translation-en_AU > > Ign http://ftp.au.debian.org/debian/ squeeze/main Translation-en > > Ign http://ftp.au.debian.org/debian/ squeeze/main Translation-en_AU > > Ign http://ftp.au.debian.org/debian/ squeeze/non-free Translation-en > > Ign http://ftp.au.debian.org/debian/ squeeze/non-free Translation-en_AU > > Hit http://ftp.au.debian.org squeeze Release > > Hit http://ftp.au.debian.org squeeze/main amd64 Packages > > Hit http://ftp.au.debian.org squeeze/contrib amd64 Packages > > Hit http://ftp.au.debian.org squeeze/non-free amd64 Packages > > Fetched 837 B in 2s (336 B/s) > > Reading package lists... Done > > W: GPG error: http://security.debian.org squeeze/updates Release: The > > following signatures were invalid: BADSIG AED4B06F473041FA Debian Archive > > Automatic Signing Key (6.0/squeeze) <ftpmas...@debian.org> > > > > this is on the basis of the following > > > > solzhenitsyn:~# more /etc/apt/sources.list > > deb http://ftp.au.debian.org/debian/ squeeze main contrib non-free > > deb http://security.debian.org/ squeeze/updates main contrib non-free > > > > If I check my keyring, I think have the correct key: > > > > solzhenitsyn:~# gpg --list-keys > > /root/.gnupg/pubring.gpg > > ------------------------ > > pub 1024D/16BA136C 2005-08-21 > > uid Backports.org Archive Key <ftp-mas...@backports.org > > > > sub 2048g/5B82CECE 2005-08-21 > > > > pub 1024D/381BA480 2007-02-15 > > uid Johannes Ranke (CRAN Debian archive) > > <jra...@uni-bremen.de> > > > > pub 2048R/E084DAB9 2010-10-19 [expires: 2015-10-18] > > uid Michael Rutter <marut...@gmail.com> > > sub 2048R/1CFF3E8F 2010-10-19 [expires: 2015-10-18] > > > > pub 4096R/473041FA 2010-08-27 [expires: 2018-03-05] > > uid Debian Archive Automatic Signing Key (6.0/squeeze) > > <ftpmas...@debian.org> > > > > searching on this error had suggestions to try: > > # apt-key adv --keyserver keyserver.debian.org --recv-keys > AED4B06F473041FA > > Executing: gpg --ignore-time-conflict --no-options --no-default-keyring > > --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg > > --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg > > --keyserver keyserver.debian.org --recv-keys AED4B06F473041FA > > gpg: requesting key 473041FA from hkp server keyserver.debian.org > > gpgkeys: HTTP fetch error 6: Couldn't resolve host 'keyserver.debian.org > ' > > gpg: no valid OpenPGP data found. > > gpg: Total number processed: 0 > > > > I do have debian-keyring installed. > > What's does "apt-key list" give you. I get the following on a wheezy > box upgraded to sid. > > # apt-key list > /etc/apt/trusted.gpg > -------------------- > pub 1024D/F42584E6 2008-04-06 [expires: 2012-05-15] > uid Lenny Stable Release Key < > debian-rele...@lists.debian.org> > > pub 4096R/55BE302B 2009-01-27 [expires: 2012-12-31] > uid Debian Archive Automatic Signing Key (5.0/lenny) > <ftpmas...@debian.org> > > pub 2048R/6D849617 2009-01-24 [expires: 2013-01-23] > uid Debian-Volatile Archive Automatic Signing Key > (5.0/lenny) > > pub 4096R/B98321F9 2010-08-07 [expires: 2017-08-05] > uid Squeeze Stable Release Key > <debian-rele...@lists.debian.org> > > pub 4096R/473041FA 2010-08-27 [expires: 2018-03-05] > uid Debian Archive Automatic Signing Key > (6.0/squeeze) <ftpmas...@debian.org> > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact > listmas...@lists.debian.org > Archive: > http://lists.debian.org/caodosyj737g9i1thexijcrkudh3xyayakccisnw5hn-9e...@mail.gmail.com > >