Public bug reported: I've tried aptitude clean, removing /var/lib/apt/lists followed by mkdir -p /var/lib/lists/partial and used the -o Acquire::http::No-Cache=True -o Acquire::BrokenProxy=true options. There is no difference in that in the end of an apt-get or aptitude update operation I get:
Reading package lists... Done W: GPG error: http://archive.canonical.com lucid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmas...@ubuntu.com> ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: apt 0.7.25.3ubuntu9.11 ProcVersionSignature: Ubuntu 2.6.32-41.88-generic 2.6.32.59+drm33.24 Uname: Linux 2.6.32-41-generic x86_64 Architecture: amd64 Date: Thu Apr 26 11:28:12 2012 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate amd64 (20100419.1) ProcEnviron: PATH=(custom, user) LANG=en_US.utf8 SHELL=/bin/bash SourcePackage: apt ** Affects: apt (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug lucid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/989134 Title: aptitude/apt-get update error: BADSIG 40976EAF437D05B5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/989134/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs