[Bug 1047282] [NEW] programs install and work, but on every installation dpkg shows some error of a previously failed installation

[peT]

Public bug reported:

Facts:
12.04.1 LTS, fresh install
*don't know which package causes error, so can't provide apt-cache policy <pkgname>*

Story is:
Ubuntu Software Center. Queued multiple programs to install (about 9 or so). First was Gimp. It seems to have downloaded fine, because the USC showed "Applying changes". So I left my laptop, thinking it would just install all the programs fine.
When I came back (half an hour later) it still showed "Applying changes" (for Gimp). My pc is not slow at all, so clearly things were going wrong. I tried to close USC and it hang up. I tried to use apt-get for installing another program and it told me dpkg was blocked, as I expected. So I tried "sudo killall dpkg" which said there is no such process.
So I restared the pc, which unlocked dpkg. And now everytime I install a program I get this error which surely is applied to this report. 
Fun Fact: Gimp works anyway.
Hope this helps, greets
peter

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: extlinux 2:4.05+dfsg-2
ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27
Uname: Linux 3.2.0-30-generic x86_64
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
Date: Fri Sep  7 12:18:09 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
SourcePackage: syslinux
Title: package extlinux 2:4.05+dfsg-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: syslinux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-package precise

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https://bugs.launchpad.net/bugs/1047282

Title:
  programs install and work, but on every installation dpkg shows some
  error of a previously failed installation

Status in “syslinux” package in Ubuntu:
  New

Bug description:
  Facts:
  12.04.1 LTS, fresh install
  *don't know which package causes error, so can't provide apt-cache policy <pkgname>*

  Story is:
  Ubuntu Software Center. Queued multiple programs to install (about 9 or so). First was Gimp. It seems to have downloaded fine, because the USC showed "Applying changes". So I left my laptop, thinking it would just install all the programs fine.
  When I came back (half an hour later) it still showed "Applying changes" (for Gimp). My pc is not slow at all, so clearly things were going wrong. I tried to close USC and it hang up. I tried to use apt-get for installing another program and it told me dpkg was blocked, as I expected. So I tried "sudo killall dpkg" which said there is no such process.
  So I restared the pc, which unlocked dpkg. And now everytime I install a program I get this error which surely is applied to this report. 
  Fun Fact: Gimp works anyway.
  Hope this helps, greets
  peter

  ProblemType: Package
  DistroRelease: Ubuntu 12.04
  Package: extlinux 2:4.05+dfsg-2
  ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27
  Uname: Linux 3.2.0-30-generic x86_64
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  Date: Fri Sep  7 12:18:09 2012
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  SourcePackage: syslinux
  Title: package extlinux 2:4.05+dfsg-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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