[Bug 2052643] Re: upgrading to 23.10 failed package grub-efi-amd64-signed 1.197+2.12~rc1-10ubuntu4 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1

[Nelson Minar]

I think the underlying problem is my system hardware changed (from
physical to virtual). 23.04 is booting fine on the new virtual hardware
but /dev/disk/by-id/ no longer exists. When I go to upgrade to 23.10 it
reinstalls grub packages and dpkg picks up a config in /var/run/debconf
that references the now-missing /dev/disk/by-id/.

If I'm right, a fix would be for the grub dpkg to more gracefully handle
missing configuration directories. At least to print a more clear error,
or even better to force a reconfigure to recover.

Lots of detail on the problem here:
https://nelsonslog.wordpress.com/2024/02/07/ubuntu-23-10-upgraded-
signed-grub-failed/

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https://bugs.launchpad.net/bugs/2052643

Title:
  upgrading to 23.10 failed package grub-efi-amd64-signed
  1.197+2.12~rc1-10ubuntu4 failed to install/upgrade: installed grub-
  efi-amd64-signed package post-installation script subprocess returned
  error exit status 1

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  VM running under Proxmox

  ProblemType: Package
  DistroRelease: Ubuntu 23.10
  Package: grub-efi-amd64-signed 1.197+2.12~rc1-10ubuntu4
  ProcVersionSignature: Ubuntu 6.2.0-39.40-generic 6.2.16
  Uname: Linux 6.2.0-39-generic x86_64
  ApportVersion: 2.27.0-0ubuntu5
  Architecture: amd64
  CasperMD5CheckResult: pass
  CloudArchitecture: x86_64
  CloudID: none
  CloudName: none
  CloudPlatform: none
  CloudSubPlatform: config
  Date: Wed Feb  7 15:16:48 2024
  DuplicateSignature:
   package:grub-efi-amd64-signed:1.197+2.12~rc1-10ubuntu4
   Setting up grub-efi-amd64-signed (1.197+2.12~rc1-10ubuntu4) ...
   Unknown device "/dev/disk/by-id/*": No such device
   dpkg: error processing package grub-efi-amd64-signed (--configure):
    installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2022-08-09 (547 days ago)
  InstallationMedia: Ubuntu-Server 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220421)
  Python3Details: /usr/bin/python3.11, Python 3.11.6, python3-minimal, 3.11.4-5
  PythonDetails: /usr/bin/python3.11, Python 3.11.6, python-is-python3, 3.11.4-1
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   dpkg 1.22.0ubuntu1
   apt  2.7.3
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.197+2.12~rc1-10ubuntu4 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  UpgradeStatus: Upgraded to mantic on 2024-02-07 (0 days ago)

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