[Bug 1971624] Re: package memtest86+ 5.31b+dfsg-4 failed to install/upgrade: installed memtest86+ package post-installation script subprocess returned error exit status 64

[Fantu]

Hi, thanks for report, from logs:

...
Configuration file '/etc/grub.d/20_memtest86+'
 ==> Deleted (by you or by a script) since installation.
 ==> Package distributor has shipped an updated version.
   What would you like to do about it ?  Your options are:
    Y or I  : install the package maintainer's version
    N or O  : keep your currently-installed version
      D     : show the differences between the versions
      Z     : start a shell to examine the situation
 The default action is to keep your current version.
*** 20_memtest86+ (Y/I/N/O/D/Z) [default=N] ? n
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
/usr/sbin/grub-probe: error: failed to get canonical path of `/boot/grub/unicode.pf2'.
No path or device is specified.
Usage: grub-probe [OPTION...] [OPTION]... [PATH|DEVICE]
Try 'grub-probe --help' or 'grub-probe --usage' for more information.
dpkg: error processing package memtest86+ (--configure):
 installed memtest86+ package post-installation script subprocess returned error exit status 64

I suppose is unexpected cases of you custom grub configuration keeped or
another unexpected cases with grub but in this latest case I need more
informations to understand how to avoid it (if possible from memtest86+
package)

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https://bugs.launchpad.net/bugs/1971624

Title:
  package memtest86+ 5.31b+dfsg-4 failed to install/upgrade: installed
  memtest86+ package post-installation script subprocess returned error
  exit status 64

Status in grub2 package in Ubuntu:
  New

Bug description:
  .

  ProblemType: Package
  DistroRelease: Ubuntu 22.04
  Package: memtest86+ 5.31b+dfsg-4
  ProcVersionSignature: Ubuntu 5.13.0-40.45-generic 5.13.19
  Uname: Linux 5.13.0-40-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Wed May  4 21:55:37 2022
  ErrorMessage: installed memtest86+ package post-installation script subprocess returned error exit status 64
  InstallationDate: Installed on 2022-04-25 (9 days ago)
  InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
  Python3Details: /usr/bin/python3.10, Python 3.10.4, python3-minimal, 3.10.4-0ubuntu2
  PythonDetails: N/A
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   dpkg 1.21.1ubuntu2
   apt  2.4.5
  SourcePackage: grub2
  Title: package memtest86+ 5.31b+dfsg-4 failed to install/upgrade: installed memtest86+ package post-installation script subprocess returned error exit status 64
  UpgradeStatus: Upgraded to jammy on 2022-05-04 (0 days ago)
  modified.conffile..etc.grub.d.20_memtest86.: [deleted]

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