[Bug 24061] Re: GPG error with apt-get/aptitude/update-manager behind proxy (BADSIG 40976EAF437D05B5)

[Paul Perkins]

My DSL modem, when the network is down, responds to anything http with a
page redirecting to an error page on the modem. I found some examples of
this in some of the *Release files in my /var/lib/apt/lists. Hard to
imagine why apt-get prefers a local copy that it has PROVED to be bogus
over re-fetching the file from the server.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to apt in Ubuntu.
https://bugs.launchpad.net/bugs/24061

Title:
  GPG error with apt-get/aptitude/update-manager behind proxy (BADSIG
  40976EAF437D05B5)

Status in “apt” package in Ubuntu:
  Triaged
Status in “update-manager” package in Ubuntu:
  Won't Fix
Status in “apt” source package in Precise:
  Triaged
Status in “update-manager” source package in Precise:
  Won't Fix

Bug description:
  I keep getting this when i launch the update manager.

  W: GPG error: http://archive.ubuntu.com breezy-updates Release: The following
  signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic
  Signing Key <ftpmaster at ubuntu.com>

  How can I fix it?

  ***********
  WORKAROUND:
  ----------
  Run the following commands(saves a backup of the old lists and creates a new lists folder) and the BADSIG error does not occur :

  $ cd /var/lib/apt
  $ sudo mv lists lists.old
  $ sudo mkdir -p lists/partial
  $ sudo apt-get update

  ***********

  comment from Rolf Leggewie: This is due to cache inconsistencies and
  thus is not necessarily a bug in Ubuntu at all.  But I hope the fine
  devs can find a way to better deal with broken proxies.  This is a
  very visible issue, a large number of internet connections are behind
  proxies and the users cannot do anything about it.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apt/+bug/24061/+subscriptions