Attached you'll find dummy-proxy referred to in the test case and from Colin Watson in bug 24061.
** Description changed: Binary package hint: adept-updater Pertinent data printed when attempting to run Updater as follows: An unresolvable problem occurred while initializing the package information. Please report this bug against the 'update-manager' package and include the following error message: 'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/us.archive.ubuntu .com_ubuntu_dists_intrepid_universe_binary-amd64_Packages, E:The package lists or status file could not be parsed or opened.' WORKAROUND: Remove problematic files from /var/lib/apt/lists/ and rerun apt-get update. In the event that one is connected to a network with a proxy server that returns html pages (like a web page requesting you to login) and not package list files. Those html files will get downloaded to /var/lib/apt/lists/ and prevent someone from using a package manager until the problem html pages are removed. TEST CASE: - 1) Ensure /etc/apt/sources.list points to archive.ubuntu.com - 2) Setup proxy server to block access to archive.ubuntu.com and return something like http://people.canonical.com/~brian/tmp/not-packages.html - 3) Execute 'sudo apt-get update' in a terminal - 4) Observe the following: - 'E: Encountered a section with no Package: header - E: Problem with MergeList /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_natty_main_binary-amd64_Packages - E: The package lists or status file could not be parsed or opened.' - 5) Try 'apt-cache policy apt' and be sad that it doesn't work - 6) run 'sudo rm /var/lib/apt/lists/*Packages' to clear the error. + 1) download the dummy-proxy attachment from this bug report + 2) run dummy-proxy (python dummy-proxy) on a precise system (this simulates a proxy that is not allowing access to archive.ubuntu.com and gives you garbage html instead) + 3) Execute 'http://localhost:8080 sudo apt-get update' in a terminal + 4) Observe the following error messages in your terminal: + W: GPG error: http://archive.ubuntu.com precise InRelease: File /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_precise_InRelease doesn't start with a clearsigned message + W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise/multiverse/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/ archive.ubuntu.com_ubuntu_dists_precise_multiverse_i18n_Index + W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_precise_multiverse_source_Sources Encountered a section with no Package: header + 5) Stop dummy-proxy + 6) Execute 'sudo apt-get update' in a terminal + 7) Observe the following error message: + Reading package lists... Done + W: GPG error: http://archive.ubuntu.com precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> + 8) Remove the problematic files in /var/lib/apt/lists (sudo rm /var/lib/apt/lists/*) - With the proposed package installed repeat steps 1 to 3. - 4) Observe the following: - ''Get:1 http://archive.ubuntu.com oneiric InRelease [189 B] - Ign http://archive.ubuntu.com oneiric InRelease - E: GPG error: http://archive.ubuntu.com oneiric InRelease: The following signatures were invalid: NODATA 1 NODATA 2' - 5) Try 'apt-cache policy apt' and be happy that it works + Install apt from -proposed + 1) run dummy-proxy (python dummy-proxy) on a precise system (this simulates a proxy that is not allowing access to archive.ubuntu.com and gives you garbarge html instead) + 2) Execute 'http://localhost:8080 sudo apt-get update' in a terminal + 3) Observe the following error messages in your terminal: + W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http:// archive.ubuntu.com precise Release: The following signatures were invalid: NODATA 1 NODATA 2 + W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise/Release + W: Some index files failed to download. They have been ignored, or old ones used instead. + 4) Stop dummy-proxy + 5) Execute 'sudo apt-get update' in a terminal + 6) Observe the update succeed ** Attachment added: "dummy-proxy" https://bugs.launchpad.net/ubuntu/+source/apt/+bug/346386/+attachment/3393829/+files/dummy-proxy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/346386 Title: [MASTER] Update fails with invalid package files with "Encountered a section with no Package: header" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/346386/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
