package fwupd 1.4.7-0~20.10.1 failed to install/upgrade: installed fwupd package post-installation script subprocess returned error exit status 1

[Eduardo da Rocha]

~$ sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  bsdmainutils calendar chromium-browser-l10n elpa-ghub elpa-let-alist
  elpa-magit-popup elpa-treepy g++-9 gir1.2-clutter-1.0 gir1.2-cogl-1.0
  gir1.2-coglpango-1.0 gir1.2-mutter-6 ippusbxd libcdio18 libdns-export1109
  libdvdnav4 libdvdread7 libedataserver-1.2-24 libffi7 libffi7:i386
  libhogweed5 libhogweed5:i386 libicu66 libicu66:i386 libjson-c4 libmozjs-68-0
  libmpdec2 libmutter-6-0 libnettle7 libnettle7:i386 libpoppler97
  libprotobuf17 libpython2-stdlib libpython2.7-minimal libpython2.7-stdlib
  libqpdf26 libreoffice-style-tango libstdc++-9-dev libtepl-4-0 libx264-155
  libx264-155:i386 libx265-179 libx265-179:i386 linux-hwe-5.8-headers-5.8.0-44
  linux-hwe-5.8-headers-5.8.0-50 ncal python-pkg-resources python2
  python2-minimal python2.7 python2.7-minimal syslinux syslinux-common
  syslinux-legacy
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.

Do you want to continue? [Y/n] Y
Setting up fwupd (1.4.7-0~20.10.1) ...
fwupd-offline-update.service is a disabled or a static unit not running, not sta
rting it.
fwupd-refresh.service is a disabled or a static unit not running, not starting i
t.
rm: cannot remove '/boot/efi/EFI/ubuntu/fwupx64.efi': Input/output error
dpkg: error processing package fwupd (--configure):
 installed fwupd package post-installation script subprocess returned error exit
 status 1
dpkg: dependency problems prevent configuration of fwupd-signed:
 fwupd-signed depends on fwupd (= 1.4.7-0~20.10.1); however:
  Package fwupd is not configured yet.

dpkg: error processing package fwupd-signed (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup erro
r from a previous failure.
                          Errors were encountered while processing:
 fwupd
 fwupd-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 20.10
Package: fwupd 1.4.7-0~20.10.1
ProcVersionSignature: Ubuntu 5.8.0-50.56-generic 5.8.18
Uname: Linux 5.8.0-50-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.5
Architecture: amd64
CasperMD5CheckResult: skip
Date: Tue May 4 22:59:38 2021
ErrorMessage: installed fwupd package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2021-02-20 (73 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
Python3Details: /usr/bin/python3.8, Python 3.8.6, python3-minimal, 3.8.6-0ubuntu1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.5ubuntu2
 apt 2.1.10ubuntu0.3
SourcePackage: fwupd
Title: package fwupd 1.4.7-0~20.10.1 failed to install/upgrade: installed fwupd package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to groovy on 2021-05-05 (0 days ago)

[Mario Limonciello (superm1)]

This looks like a problem with the EFI system partition outside of the fwupd package. You'll have to manually clean it up.

rm: cannot remove '/boot/efi/EFI/ubuntu/fwupx64.efi': Input/output error