[Bug 1871963] Re: dpkg fails to install grub-efi-amd64 signed and shim-signed

[Ben Simpson]

Philipp Classen #13

> (Another issue, which I will mention as there is a tiny chance that it
is related, although I doubt it: After rebooting, I was not able to boot
(not even reaching the question for the passphrase). To solve it, I had
to disable Secure Boot, then I reached the state where I could enter my
passphrase to unlock the encrypted partition.)

Small modification to your commands above - after purging the grub
packages I did a `sudo apt-get install grub-efi-amd64-signed` instead of
`sudo apt-get install grub-efi`. I believe the signed packages include
the CA certificate needed to allow secure boot in the BIOS settings.
This could make a difference if this option is enabled. I suspect this
might have been what you observed.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2-signed in Ubuntu.
https://bugs.launchpad.net/bugs/1871963

Title:
  dpkg fails to install grub-efi-amd64 signed and shim-signed

Status in dpkg package in Ubuntu:
  Invalid
Status in grub2-signed package in Ubuntu:
  Fix Released

Bug description:
  See above

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: dpkg 1.19.7ubuntu3
  ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
  Uname: Linux 5.4.0-21-generic x86_64
  ApportVersion: 2.20.11-0ubuntu26
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Thu Apr  9 18:41:33 2020
  InstallationDate: Installed on 2020-04-09 (0 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: dpkg
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1871963/+subscriptions