[Bug 1805490] Re: Grub2 Failed to install "efibootmgr failed to register the boot entry: Block device required."

[Fr. Larry Gearhart]

I have been using a workaround submitted by Ronan Mooney, listed as #11 
on https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1753518

The workaround has enabled me to complete upgrades.

On 2/12/19 10:09 PM, Mathieu Trudel-Lapierre wrote:
> I'm unable to reproduce this. I've tried upgrading from bionic to
> cosmic, or various partitioning set ups. Clearly there is something
> special about some set up that can cause this kind of issue, but I'm
> unsure what it could be.
>
> Could you please tell us more about how your system was installed that
> could help reproducing the bug?
>
>   - Is it upgraded from previous releases before the bionic -> cosmic upgrade?
>   - Is there a special partitioning done?
>   - Is "CSM" enabled in the BIOS with the UEFI mode?
>   - Is there anything else you can say about the affected systems that could help us reproduce the issue?
>

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https://bugs.launchpad.net/bugs/1805490

Title:
  Grub2 Failed to install "efibootmgr failed to register the boot entry:
  Block device required."

Status in grub2-signed package in Ubuntu:
  Incomplete

Bug description:
  package grub-efi-amd64-signed 1.93.10+2.02-2ubuntu8.9 failed to
  install/upgrade: installed grub-efi-amd64-signed package post-
  installation script subprocess returned error exit status 1

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: grub-efi-amd64-signed 1.93.10+2.02-2ubuntu8.9
  ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
  Uname: Linux 4.15.0-38-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: amd64
  Date: Tue Nov 27 10:35:08 2018
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2018-05-12 (199 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  Python3Details: /usr/bin/python3.6, Python 3.6.7, python3-minimal, 3.6.7-1~18.04
  PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2.1
   apt  1.6.6
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.93.10+2.02-2ubuntu8.9 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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