[Bug 1048445] [NEW] E:Encountered a section with no Package: header, E:Problem with MergeList

[Chanchao]

Public bug reported:

This happens when I forget to open a web browser first to log into my
company's Barracuda web filter.  As a result, update-manager cannot
reach (some?) of the repositories.

All of that would be expected behavior, except that it causes a
permanent problem in the update mechanism; after gaining full internet
access, the update manager still stops with the same error (attached).

I do know how to solve it, it involves running the following commands:

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

This took quite a while to figure out, I think update-manager should
handle it better when there is no unrestricted internet connection to
(some) repositories.

This affects all currenlty supported Ubuntu releases; currently I'm on
Precise.

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1048445

Title:
  E:Encountered a section with no Package: header, E:Problem with
  MergeList

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  This happens when I forget to open a web browser first to log into my
  company's Barracuda web filter.  As a result, update-manager cannot
  reach (some?) of the repositories.

  All of that would be expected behavior, except that it causes a
  permanent problem in the update mechanism; after gaining full internet
  access, the update manager still stops with the same error (attached).

  I do know how to solve it, it involves running the following commands:

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

  This took quite a while to figure out, I think update-manager should
  handle it better when there is no unrestricted internet connection to
  (some) repositories.

  This affects all currenlty supported Ubuntu releases; currently I'm on
  Precise.

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