[Bug 1842674] Re: package grub-efi-amd64-signed 1.66.22+2.02~beta2-36ubuntu3.22 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Apport retracing service]

*** This bug is a duplicate of bug 1840381 ***
    https://bugs.launchpad.net/bugs/1840381

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1840381, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** Tags removed: need-duplicate-check

** This bug has been marked a duplicate of bug 1840381
   package grub-efi-amd64-signed 1.66.22+2.02~beta2-36ubuntu3.22 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

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Title:
  package grub-efi-amd64-signed 1.66.22+2.02~beta2-36ubuntu3.22 failed
  to install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  Dual boot system; on both systems is installed ubuntu 16.04. The error
  appear after every update on one of the systems but not on the other,
  on grub module; the update is applied, but is ended with this error.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: grub-efi-amd64-signed 1.66.22+2.02~beta2-36ubuntu3.22
  ProcVersionSignature: Ubuntu 4.15.0-58.64~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-58-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.1-0ubuntu2.19
  AptOrdering:
   linux-signed-generic-hwe-16.04: Install
   grub-efi-amd64-signed: Configure
   linux-signed-generic-hwe-16.04: Configure
   NULL: ConfigurePending
  Architecture: amd64
  Date: Wed Sep  4 16:49:28 2019
  DpkgHistoryLog:
   Start-Date: 2019-09-04  16:49:27
   Commandline: /usr/bin/unattended-upgrade
   Upgrade: linux-signed-generic-hwe-16.04:amd64 (4.15.0.58.79, 4.15.0.60.81)
  DuplicateSignature:
   package:grub-efi-amd64-signed:1.66.22+2.02~beta2-36ubuntu3.22
   Setting up grub-efi-amd64-signed (1.66.22+2.02~beta2-36ubuntu3.22) ...
   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
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2017-11-06 (666 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.6
   apt  1.2.32
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.66.22+2.02~beta2-36ubuntu3.22 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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