[Bug 1654268] Re: package grub-efi-amd64-signed 1.66.6+2.02~beta2-36ubuntu3.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Apport retracing service]

** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1654268

Title:
  package grub-efi-amd64-signed 1.66.6+2.02~beta2-36ubuntu3.6 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  Install upgrade

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-efi-amd64-signed 1.66.6+2.02~beta2-36ubuntu3.6
  ProcVersionSignature: Ubuntu 4.4.0-51.72-generic 4.4.30
  Uname: Linux 4.4.0-51-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.4
  Architecture: amd64
  Date: Thu Jan  5 07:31:20 2017
  DuplicateSignature:
   package:grub-efi-amd64-signed:1.66.6+2.02~beta2-36ubuntu3.6
   Setting up grub-efi-amd64-signed (1.66.6+2.02~beta2-36ubuntu3.6) ...
   grub-install: error: «/usr/lib/grub/i386-pc/modinfo.sh» no existe. Indique --target o --directory.
   dpkg: error processing package grub-efi-amd64-signed (--configure):
    subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2016-05-01 (249 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.15ubuntu0.2
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.66.6+2.02~beta2-36ubuntu3.6 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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