[Bug 1667929] Re: package nano 2.5.3-2ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[Benno Schulenberg]

Jerome, for some reason I didn't see the message that said you posted
the file.

The file you posted looks entirely corrupt, being full of binary stuff.
If you have also Pico itself installed (beside nano), the content of
that file should look something like this:

auto
/usr/bin/pico
pico.1.gz
/usr/share/man/man1/pico.1.gz

/bin/nano
10
/usr/share/man/man1/nano.1.gz


Nine lines, of which two blank.  If you haven't already done so, I suggest you simply delete the corrupted file, and then try installing nano again.  Let us know how it went.

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Title:
  package nano 2.5.3-2ubuntu2 failed to install/upgrade: subprocess
  installed post-installation script returned error exit status 2

Status in nano package in Ubuntu:
  New

Bug description:
  it crashed during software update

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: nano 2.5.3-2ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40
  Uname: Linux 4.4.0-62-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  Date: Sat Feb 25 14:28:00 2017
  DpkgHistoryLog:
   Start-Date: 2017-02-25  14:01:31
   Commandline: aptdaemon role='role-commit-packages' sender=':1.34'
   Install: linux-headers-4.4.0-64:amd64 (4.4.0-64.85, automatic), linux-image-4.4.0-64-generic:amd64 (4.4.0-64.85, automatic), linux-image-extra-4.4.0-64-generic:amd64 (4.4.0-64.85, automatic), linux-headers-4.4.0-64-generic:amd64 (4.4.0-64.85, automatic)
   Upgrade: linux-headers-generic:amd64 (4.4.0.62.65, 4.4.0.64.68), xserver-xorg-video-amdgpu:amd64 (1.1.0-1, 1.1.2-0ubuntu0.16.04.1), linux-image-generic:amd64 (4.4.0.62.65, 4.4.0.64.68), tcpdump:amd64 (4.7.4-1ubuntu1, 4.9.0-1ubuntu1~ubuntu16.04.1), nano:amd64 (2.5.3-2ubuntu1, 2.5.3-2ubuntu2), gstreamer1.0-libav:amd64 (1.8.3-1ubuntu0.1, 1.8.3-1ubuntu0.2), linux-generic:amd64 (4.4.0.62.65, 4.4.0.64.68)
  DuplicateSignature:
   package:nano:2.5.3-2ubuntu2
   Setting up nano (2.5.3-2ubuntu2) ...
   update-alternatives: error: /var/lib/dpkg/alternatives/pico corrupt: invalid status
   dpkg: error processing package nano (--configure):
    subprocess installed post-installation script returned error exit status 2
  ErrorMessage: subprocess installed post-installation script returned error exit status 2
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.19
  SourcePackage: nano
  Title: package nano 2.5.3-2ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
  UpgradeStatus: No upgrade log present (probably fresh install)

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