[Bug 2112458] Re: package grub-efi-amd64 2.12-1ubuntu7.3 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127

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** Tags removed: need-duplicate-check

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Title:
  package grub-efi-amd64 2.12-1ubuntu7.3 failed to install/upgrade:
  installed grub-efi-amd64 package post-installation script subprocess
  returned error exit status 127

Status in grub2-unsigned package in Ubuntu:
  New

Bug description:
  a

  ProblemType: Package
  DistroRelease: Ubuntu 24.04
  Package: grub-efi-amd64 2.12-1ubuntu7.3
  ProcVersionSignature: Ubuntu 6.11.0-26.26~24.04.1-generic 6.11.11
  Uname: Linux 6.11.0-26-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.6
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Wed Jun  4 12:50:50 2025
  DuplicateSignature:
   package:grub-efi-amd64:2.12-1ubuntu7.3
   Setting up grub-efi-amd64 (2.12-1ubuntu7.3) ...
   /var/lib/dpkg/info/grub-efi-amd64.config: 40: /etc/default/grub: s: not found
   dpkg: error processing package grub-efi-amd64 (--configure):
    installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127
  ErrorMessage: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127
  InstallationDate: Installed on 2025-02-05 (119 days ago)
  InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827.1)
  Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu2
  PythonDetails: N/A
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   dpkg 1.22.6ubuntu6.1
   apt  2.8.3
  SourcePackage: grub2-unsigned
  Title: package grub-efi-amd64 2.12-1ubuntu7.3 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127
  UpgradeStatus: No upgrade log present (probably fresh install)

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