[Bug 346386] Re: [MASTER] Update fails with invalid package files with "Encountered a section with no Package: header"

[PMPope]

Did you try the Xillix fix described earlier in this thread? It worked like
a charm for me.
On Jun 28, 2011 10:11 PM, "Laxman Poudel" <346386 at bugs.launchpad.net> wrote:
> 'E:Encountered a section with no Package: header, E:Problem with MergeList
/var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_natty_main_binary-i386_Packages,
E:The package lists or status file could not be parsed or opened.
>
> I have this problem
>
> Can this be fixed automatically? please help me I am new to the bug
> fixing.
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (791696).
> https://bugs.launchpad.net/bugs/346386
>
> Title:
> [MASTER] Update fails with invalid package files with "Encountered a
> section with no Package: header"
>
> Status in “apt” package in Ubuntu:
> Fix Released
> Status in “apt” source package in Natty:
> Fix Released
> Status in “apt” package in Debian:
> Fix Released
>
> Bug description:
> 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.
>
> 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
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/apt/+bug/346386/+subscriptions

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https://bugs.launchpad.net/bugs/346386

Title:
  [MASTER] Update fails with invalid package files with "Encountered a
  section with no Package: header"

Status in “apt” package in Ubuntu:
  Fix Released
Status in “apt” source package in Natty:
  Fix Released
Status in “apt” package in Debian:
  Fix Released

Bug description:
  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.

  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

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