[Bug 1814187] Re: package grub-efi-amd64 2.02-2ubuntu8.10 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127

[Braedon Vickers]

I had the same issue, and installing mokutil fixes it for me too. Thanks
@arndbehring!

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Title:
  package grub-efi-amd64 2.02-2ubuntu8.10 failed to install/upgrade:
  installed grub-efi-amd64 package post-installation script subprocess
  returned error exit status 127

Status in grub2 package in Ubuntu:
  Confirmed

Bug description:
  I used sudo apt update and sudo apt upgrade. 45 packages updated, 7
  new installed (kernel). All kernels installed are from Ubuntu
  repositories, the system was upgraded a few times already. The kernels
  the system have:

  4.15.0-45-generic
  4.15.0-44-generic
  4.15.0-43-generic
  4.15.0-22-generic
  4.10.0-26-generic
  4.4.0-83-generic

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: grub-efi-amd64 2.02-2ubuntu8.10
  ProcVersionSignature: Ubuntu 4.18.0-14.15~18.04.1-generic 4.18.20
  Uname: Linux 4.18.0-14-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: amd64
  Date: Thu Jan 31 21:53:58 2019
  ErrorMessage: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127
  InstallationDate: Installed on 2017-07-24 (556 days ago)
  InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-14-generic root=UUID=984701f6-117a-4fb5-ba8e-761744701fff ro quiet
  Python3Details: /usr/bin/python3.6, Python 3.6.7, python3-minimal, 3.6.7-1~18.04
  PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2.1
   apt  1.6.8
  SourcePackage: grub2
  Title: package grub-efi-amd64 2.02-2ubuntu8.10 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127
  UpgradeStatus: Upgraded to bionic on 2018-04-27 (279 days ago)

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