[Bug 1751416] Re: package grub-common 2.02~beta3-4ubuntu7.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Michael Poole]

*** This bug is a duplicate of bug 1705345 ***
    https://bugs.launchpad.net/bugs/1705345

The complaint here -- apparently trying to run "which python" failed --
makes it look quite different than the "plymouth --ping" issue in bug
1705345.  What is the basis for marking this as a duplicate?

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Title:
  package grub-common 2.02~beta3-4ubuntu7.1 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in grub2 package in Ubuntu:
  New

Bug description:
  It is appeared after installing an updates on fresh ubuntu 17.10
  installation

  ProblemType: Package
  DistroRelease: Ubuntu 17.10
  Package: grub-common 2.02~beta3-4ubuntu7.1
  ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13
  Uname: Linux 4.13.0-21-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  Date: Sat Feb 24 09:00:33 2018
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2018-02-23 (0 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-21-generic root=UUID=b38738b2-7475-4dad-a28f-be6621cecbb5 ro quiet splash vt.handoff=7
  Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
  PythonDetails: /root/Error: command ['which', 'python'] failed with exit code 1:, Error: [Errno 2] No such file or directory: "/root/Error: command ['which', 'python'] failed with exit code 1:": "/root/Error: command ['which', 'python'] failed with exit code 1:", unpackaged
  RelatedPackageVersions:
   dpkg 1.18.24ubuntu1
   apt  1.5.1
  SourcePackage: grub2
  Title: package grub-common 2.02~beta3-4ubuntu7.1 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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