[Bug 2130775] Re: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32

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** Tags removed: need-duplicate-check

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Title:
  installed grub-efi-amd64-signed package post-installation script
  subprocess returned error exit status 32

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  Full summary: package grub-efi-amd64-signed
  1.214+2.14~git20250718.0e36779-1ubuntu4 failed to install/upgrade:
  installed grub-efi-amd64-signed package post-installation script
  subprocess returned error exit status 32

  I've upgraded from 25.04 to 25.10 and got this dialog (see
  attachment). I selected the main disk /dev/vda.

  Then I got this error

  ProblemType: Package
  DistroRelease: Ubuntu 25.10
  Package: grub-efi-amd64-signed 1.214+2.14~git20250718.0e36779-1ubuntu4
  ProcVersionSignature: Ubuntu 6.14.0-35.35-generic 6.14.11
  Uname: Linux 6.14.0-35-generic x86_64
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Thu Nov  6 09:24:41 2025
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32
  InstallationDate: Installed on 2023-05-15 (906 days ago)
  InstallationMedia: Ubuntu-Server 23.04 "Lunar Lobster" - Release amd64 (20230415)
  Python3Details: /usr/bin/python3.13, Python 3.13.7, python3-minimal, 3.13.7-1
  PythonDetails: N/A
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   dpkg 1.22.21ubuntu3.1
   apt  3.1.6ubuntu2
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.214+2.14~git20250718.0e36779-1ubuntu4 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32
  UpgradeStatus: Upgraded to questing on 2025-11-06 (0 days ago)

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