package grub-efi-amd64-signed 1.110.3+2.02+dfsg1-5ubuntu8.3 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127

[Thomas J Myers]

I've been getting incomplete upgrade messages for a while now, e.g. unable to find gnome.org, and I hoped that upgrading to a new distribution would clear them...

ProblemType: Package
DistroRelease: Ubuntu 18.10
Package: grub-efi-amd64-signed 1.110.3+2.02+dfsg1-5ubuntu8.3
ProcVersionSignature: Ubuntu 4.18.0-17.18-generic 4.18.20
Uname: Linux 4.18.0-17-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.2
AptOrdering:
 grub-pc-bin:amd64: Install
 grub-gfxpayload-lists:amd64: Install
 grub-efi-amd64:amd64: Remove
 grub-pc:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
Date: Sat Apr 20 07:40:44 2019
DuplicateSignature:
 package:grub-efi-amd64-signed:1.110.3+2.02+dfsg1-5ubuntu8.3
 Setting up grub-efi-amd64-signed (1.110.3+2.02+dfsg1-5ubuntu8.3) ...
 dpkg: error processing package grub-efi-amd64-signed (--configure):
  installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127
ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127
InstallationDate: Installed on 2015-05-04 (1446 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
Python3Details: /usr/bin/python3.6, Python 3.6.7, python3-minimal, 3.6.7-1~18.10
PythonDetails: /usr/bin/python2.7, Python 2.7.15+, python-minimal, 2.7.15-3
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu5
 apt 1.7.4
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.110.3+2.02+dfsg1-5ubuntu8.3 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127
UpgradeStatus: Upgraded to cosmic on 2019-04-20 (0 days ago)

[Launchpad Janitor (janitor)]

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