[Bug 1712111] Re: "grub-efi-amd64-signed" package failed to install

[Phillip Susi]

Your disk is currently partitioned to boot in bios mode, but you booted
the installer in EFI mode. A warning message prompted you that this
could be a problem and recommended performing a bios mode install
instead, but you chose not to. You either need to perform the bios mode
install, or partition the disk using GPT and set up an EFI system
partition to install in EFI mode. This will be done for you if you
choose the "use entire disk" guided install option.

** Changed in: grub-installer (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1712111

Title:
  "grub-efi-amd64-signed" package failed to install

Status in grub-installer package in Ubuntu:
  Invalid

Bug description:
  Xubuntu 16.04.2 -- slows down, freezes, dies.  Attempted to reinstall.  Get the error message:
  "The "grub-efi-amd64-signed" package failed to install into /target/.  Without the GRUB boot loader, the installed system will not boot.

  Attempted to install LinuxMint 18.2.  Same message!

  I'm installing UEFI, allowing 3rd party, etc.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubiquity 2.21.63.3
  ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11
  Uname: Linux 4.8.0-36-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  CasperVersion: 1.376.2
  Date: Mon Aug 21 10:46:01 2017
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/xubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Xubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215)
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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