[Bug 1948591] 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

[Dave Jones]

The error message indicates that your boot partition isn't correctly
mounted ("Error: missing /boot/firmware, did you forget to mount it?")
and the attached Df.txt appears to indicate that /dev/mmcblk0p1 is
mounted at /media/midian/boot instead of /boot/firmware.

Could you attach the content of /etc/fstab? It may provide some clue as
to why the boot partition is winding up at the wrong mount-point.

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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:
  Conducted system update per OS/Ubuntu notification.  When the update
  failed the first time, I reinstalled the entire Ubuntu OS again on my
  raspberryPi4.  After reinstalling Ubuntu, the failures continue and
  I'm unable to complete the OS updates.

  ProblemType: Package
  DistroRelease: Ubuntu 20.10
  Package: flash-kernel 3.103ubuntu1~20.10.1
  Uname: Linux 5.10.43v64 aarch64
  ApportVersion: 2.20.11-0ubuntu50.7
  Architecture: arm64
  CasperMD5CheckResult: skip
  Date: Sun Oct 24 12:49:38 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
   network-manager
  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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