[Bug 1898347] Re: package shim-signed 1.40.4+15+1552672080.a4a1fbe-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

[Apport retracing service]

*** This bug is a duplicate of bug 1896127 ***
    https://bugs.launchpad.net/bugs/1896127

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1896127, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** Tags removed: need-duplicate-check

** This bug has been marked a duplicate of bug 1896127
   package shim-signed 1.40.4+15+1552672080.a4a1fbe-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

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https://bugs.launchpad.net/bugs/1898347

Title:
  package shim-signed 1.40.4+15+1552672080.a4a1fbe-0ubuntu2 failed to
  install/upgrade: installed shim-signed package post-installation
  script subprocess returned error exit status 1

Status in grub2 package in Ubuntu:
  New

Bug description:
  I got this error after I upgraded from 18.04 to 20.4.

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: shim-signed 1.40.4+15+1552672080.a4a1fbe-0ubuntu2
  ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
  Uname: Linux 5.4.0-48-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.11-0ubuntu27.9
  Architecture: amd64
  BootEFIContents:
   BOOTX64.CSV
   grub.cfg
   grubx64.efi
   mmx64.efi
   shimx64.efi
  CasperMD5CheckResult: skip
  Date: Sat Oct  3 16:11:23 2020
  DuplicateSignature:
   package:shim-signed:1.40.4+15+1552672080.a4a1fbe-0ubuntu2
   Setting up shim-signed (1.40.4+15+1552672080.a4a1fbe-0ubuntu2) ...
   dpkg: error processing package shim-signed (--configure):
    installed shim-signed package post-installation script subprocess returned error exit status 1
  EFIBootMgr:
   BootCurrent: 0000
   Timeout: 1 seconds
   BootOrder: 0002,0000
   Boot0000* ubuntu	HD(1,GPT,d6b23e00-ef2e-4b5b-9070-59df10e946c2,0x800,0x82000)/File(\EFI\UBUNTU\SHIMX64.EFI)
   Boot0002* Windows Boot Manager	HD(1,GPT,d6b23e00-ef2e-4b5b-9070-59df10e946c2,0x800,0x82000)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}....................
  ErrorMessage: installed shim-signed package post-installation script subprocess returned error exit status 1
  GrubDiff: Binary files /boot/efi/EFI/ubuntu/grubx64.efi and /usr/lib/grub/x86_64-efi-signed/grubx64.efi.signed differ
  InstallationDate: Installed on 2020-03-28 (188 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.2ubuntu0.1
  SecureBoot: 6   0   0   0   0
  ShimDiff: Binary files /boot/efi/EFI/ubuntu/shimx64.efi and /usr/lib/shim/shimx64.efi.signed differ
  SourcePackage: grub2
  Title: package shim-signed 1.40.4+15+1552672080.a4a1fbe-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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