package grub-efi-amd64-signed 1.66.29+2.02~beta2-36ubuntu3.29 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[miguel michalon]

package configuration failed during the release upgrade script post-installation return state 1

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: grub-efi-amd64-signed 1.66.29+2.02~beta2-36ubuntu3.29
ProcVersionSignature: Ubuntu 4.15.0-106.107~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-106-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.27
Architecture: amd64
Date: Wed Dec 9 10:48:34 2020
DuplicateSignature:
 package:grub-efi-amd64-signed:1.66.29+2.02~beta2-36ubuntu3.29
 Setting up grub-efi-amd64-signed (1.66.29+2.02~beta2-36ubuntu3.29) ...
 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 2018-06-28 (895 days ago)
InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.6
 apt 1.2.32ubuntu0.1
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.66.29+2.02~beta2-36ubuntu3.29 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2020-12-09 (0 days ago)

[Launchpad Janitor (janitor)]

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