[Bug 1940776] Re: package flash-kernel 3.103ubuntu1~20.10.1 failed to install/upgrade: installed flash-kernel package post-installation script subprocess returned error exit status 1

[Apport retracing service]

*** This bug is a duplicate of bug 1914712 ***
    https://bugs.launchpad.net/bugs/1914712

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 #1914712, 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 1914712
   package flash-kernel 3.103ubuntu1~20.10.1 failed to install/upgrade: installed flash-kernel package post-installation script subprocess returned error exit status 1

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https://bugs.launchpad.net/bugs/1940776

Title:
  package flash-kernel 3.103ubuntu1~20.10.1 failed to install/upgrade:
  installed flash-kernel package post-installation script subprocess
  returned error exit status 1

Status in flash-kernel package in Ubuntu:
  New

Bug description:

  I can't update system at all because following fault

  
  Software Updater on Raspberry Pi4:

  The installation or removal of a software package failed

  ProblemType: Package
  DistroRelease: Ubuntu 20.10
  Package: flash-kernel 3.103ubuntu1~20.10.1
  Uname: Linux 5.4.73v64 aarch64
  ApportVersion: 2.20.11-0ubuntu50.7
  Architecture: arm64
  CasperMD5CheckResult: skip
  Date: Sun Aug 22 20:10:44 2021
  DuplicateSignature:
   package:flash-kernel:3.103ubuntu1~20.10.1
   Setting up u-boot-rpi:arm64 (2020.10+dfsg-1ubuntu0~20.10.1) ...
   Error: missing /boot/firmware, did you forget to mount it?
   dpkg: error processing package u-boot-rpi:arm64 (--configure):
    installed u-boot-rpi:arm64 package post-installation script subprocess returned error exit status 1
  ErrorMessage: installed flash-kernel package post-installation script subprocess returned error exit status 1
  ImageMediaBuild: 20201022
  Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.6-0ubuntu1
  PythonDetails: N/A
  RebootRequiredPkgs: gnome-shell
  RelatedPackageVersions:
   dpkg 1.20.5ubuntu2
   apt  2.1.10ubuntu0.3
  SourcePackage: flash-kernel
  Title: package flash-kernel 3.103ubuntu1~20.10.1 failed to install/upgrade: installed flash-kernel package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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