[Bug 1469333] Re: package grub-efi-amd64-signed 1.50+2.02~beta2-26ubuntu1 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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Title:
  package grub-efi-amd64-signed 1.50+2.02~beta2-26ubuntu1 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  Fails with:

  Setting up grub-efi-amd64-signed (1.50+2.02~beta2-26ubuntu1) ...
  grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
  dpkg: error processing package grub-efi-amd64-signed (--configure):
   subprocess installed post-installation script returned error exit status 1

  ProblemType: Package
  DistroRelease: Ubuntu 15.10
  Package: grub-efi-amd64-signed 1.50+2.02~beta2-26ubuntu1
  ProcVersionSignature: Ubuntu 3.19.0-20.20-generic 3.19.8
  Uname: Linux 3.19.0-20-generic x86_64
  ApportVersion: 2.17.3-0ubuntu4
  Architecture: amd64
  Date: Sat Jun 27 01:25:18 2015
  DuplicateSignature: package:grub-efi-amd64-signed:1.50+2.02~beta2-26ubuntu1:subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2015-05-24 (33 days ago)
  InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150523)
  RelatedPackageVersions:
   dpkg 1.17.25ubuntu1
   apt  1.0.9.10ubuntu1
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.50+2.02~beta2-26ubuntu1 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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