[Bug 1803336] Re: package grub-efi-amd64-signed 1.66.19+2.02~beta2-36ubuntu3.19 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: grub2-signed (Ubuntu)
       Status: New => Confirmed

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Title:
  package grub-efi-amd64-signed 1.66.19+2.02~beta2-36ubuntu3.19 failed
  to install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in grub2-signed package in Ubuntu:
  Confirmed

Bug description:
  I dont know details. It just apear during the update.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-efi-amd64-signed 1.66.19+2.02~beta2-36ubuntu3.19
  ProcVersionSignature: Ubuntu 4.10.0-35.39~16.04.1-generic 4.10.17
  Uname: Linux 4.10.0-35-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  Date: Wed Nov 14 09:28:59 2018
  DuplicateSignature:
   package:grub-efi-amd64-signed:1.66.19+2.02~beta2-36ubuntu3.19
   Setting up grub-efi-amd64-signed (1.66.19+2.02~beta2-36ubuntu3.19) ...
   grub-install: erro: /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
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2017-09-25 (414 days ago)
  InstallationMedia: Ubuntu-GNOME 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.5
   apt  1.2.29
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.66.19+2.02~beta2-36ubuntu3.19 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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