[Bug 1270706] Re: update-manager reports error: ...Some index files failed to download...

[pointer]

This is my sources.list:
------------------------------------------
# deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)]/ precise main restricted
deb-src http://archive.ubuntu.com/ubuntu precise main restricted #Added by software-properties

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://ru.archive.ubuntu.com/ubuntu/ precise main restricted
deb-src http://ru.archive.ubuntu.com/ubuntu/ precise restricted main multiverse universe #Added by software-properties

## Major bug fix updates produced after the final release of the
## distribution.
deb http://ru.archive.ubuntu.com/ubuntu/ precise-updates main restricted
deb-src http://ru.archive.ubuntu.com/ubuntu/ precise-updates restricted main multiverse universe #Added by software-properties

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://ru.archive.ubuntu.com/ubuntu/ precise universe
deb http://ru.archive.ubuntu.com/ubuntu/ precise-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://ru.archive.ubuntu.com/ubuntu/ precise multiverse
deb http://ru.archive.ubuntu.com/ubuntu/ precise-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://ru.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://ru.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse #Added by software-properties

deb http://security.ubuntu.com/ubuntu precise-security main restricted
deb-src http://security.ubuntu.com/ubuntu precise-security restricted main multiverse universe #Added by software-properties
deb http://security.ubuntu.com/ubuntu precise-security universe
deb http://security.ubuntu.com/ubuntu precise-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu precise partner
deb-src http://archive.canonical.com/ubuntu precise partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu precise main
deb http://ru.archive.ubuntu.com/ubuntu/ precise-proposed restricted main multiverse universe
deb-src http://ru.archive.ubuntu.com/ubuntu/ precise-proposed restricted main multiverse universe #Added by software-properties
deb-src http://extras.ubuntu.com/ubuntu precise main
------------------------------------------
should I switch off something?
PS: I have not changed any sources since install time (about one year ago)

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to update-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1270706

Title:
  update-manager reports error: ...Some index files failed to
  download...

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

Bug description:
  update-manager reports:
  W:Failed to fetch gzip:/var/lib/apt/lists/partial/ru.archive.ubuntu.com_ubuntu_dists_precise-updates_main_i18n_Translation-en  Encountered a section with no Package: header
  , E:Some index files failed to download. They have been ignored, or old ones used instead.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.11
  ProcVersionSignature: Ubuntu 3.2.0-58.88-generic-pae 3.2.53
  Uname: Linux 3.2.0-58-generic-pae i686
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: i386
  Date: Mon Jan 20 09:02:44 2014
  ExecutablePath: /usr/bin/update-manager
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  InterpreterPath: /usr/bin/python2.7
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   LANG=ru_RU.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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