[Bug 1800683] Re: package grub-efi-amd64-signed 1.93.8+2.02-2ubuntu8.7 failed to install/upgrade: 'efibootmgr failed to register the boot entry: Block device required.'

[Mathieu Trudel-Lapierre]

** This bug is no longer a duplicate of bug 1805490
   [master] Grub2 Failed to install "efibootmgr failed to register the boot entry: Block device required."

** Summary changed:

- package grub-efi-amd64-signed 1.93.8+2.02-2ubuntu8.7 failed to install/upgrade: 'efibootmgr failed to register the boot entry: Block device required.'
+ [master] grub-efi-amd64-signed failed to upgrade: 'efibootmgr failed to register the boot entry: Input/output error.'

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Title:
  [master] grub-efi-amd64-signed failed to upgrade: 'efibootmgr failed
  to register the boot entry: Input/output error.'

Status in grub2-signed package in Ubuntu:
  Confirmed

Bug description:
  not able to upgrade grub-efi-amd64-signed.

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: grub-efi-amd64-signed 1.93.8+2.02-2ubuntu8.7
  ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
  Uname: Linux 4.15.0-38-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.4
  Architecture: amd64
  Date: Fri Oct 26 20:04:09 2018
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2017-12-24 (309 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  Python3Details: /usr/bin/python3.6, Python 3.6.6, python3-minimal, 3.6.5-3ubuntu1
  PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2
   apt  1.6.6
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.93.8+2.02-2ubuntu8.7 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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