package grub-efi-amd64-signed 1.155.1+2.04-1ubuntu35.1 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127

[pd5rm]

Related to https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1814187?

ProblemType: Package
DistroRelease: Ubuntu 20.10
Package: grub-efi-amd64-signed 1.155.1+2.04-1ubuntu35.1
ProcVersionSignature: Ubuntu 5.8.0-38.43-generic 5.8.18
Uname: Linux 5.8.0-38-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.3
Architecture: amd64
CasperMD5CheckResult: skip
Date: Tue Jan 19 16:34:24 2021
DuplicateSignature:
 package:grub-efi-amd64-signed:1.155.1+2.04-1ubuntu35.1
 Setting up grub-efi-amd64-signed (1.155.1+2.04-1ubuntu35.1) ...
 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 2015-10-27 (1911 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
Python3Details: /usr/bin/python3.8, Python 3.8.6, python3-minimal, 3.8.6-0ubuntu1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.5ubuntu2
 apt 2.1.10ubuntu0.1
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.155.1+2.04-1ubuntu35.1 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127
UpgradeStatus: Upgraded to groovy on 2020-12-01 (49 days ago)

[Launchpad Janitor (janitor)]

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