[Bug 1837485] Re: grub2-efi-signed refuses to install to SSD drive

[Gablewatts]

I finally discovered what the problem was:

Somehow the SecureBoot keys that are installed by default on my laptop
were deleted. Once I "Factory Restored" those SecureBoot keys in my UEFI
System Settings, then the Ubuntu installer would finish installing
without error.

So the only thing that would have really helped would have been a
helpful error message when the grub2-efi-signed package failed to
install.

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https://bugs.launchpad.net/bugs/1837485

Title:
  grub2-efi-signed refuses to install to SSD drive

Status in grub-installer package in Ubuntu:
  New

Bug description:
  I've been trying to reinstall various versions of Ubuntu onto my
  System76 Lemur laptop with a Samsung ATA SSD and everytime I run the
  installer everything proceeds fine until grub2-efi-signed package
  tries to install and that repeatedly fails giving an error message
  that is not useful (it just says it failed to install giving no
  indication why).

  I tried reformatting the EFI partition to FAT32 and retrying but even
  the same failure occurs when the grub2-efi-signed package tries to
  install itself.

  My guess is there is something that the installer doesn't expect in
  the boot sectors of the SSD and this causes the installation of the
  grub2-efi-signed package to fail (without giving any useful info).

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14.6 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
  Uname: Linux 4.15.0-29-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CasperVersion: 1.394
  Date: Mon Jul 22 16:19:12 2019
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/xubuntu.seed boot=casper quiet splash ---
  LiveMediaBuild: Xubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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