[Bug 1785451] Re: ubuntu new install 18.04 fails at last step, grub-efi-amd64-signed failed to install

[elric]

output from boot-repair

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install -y boot-repair && boot-repair

** Attachment added: "output boot-repair"
   https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1785451/+attachment/5177424/+files/Boot-Info_20180819_0007.txt

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https://bugs.launchpad.net/bugs/1785451

Title:
  ubuntu new install 18.04 fails at last step, grub-efi-amd64-signed
  failed to install

Status in grub-installer package in Ubuntu:
  Incomplete

Bug description:
  ubuntu new install 18.04 fails at last step, grub-efi-amd64-signed
  failed to install.

  On
  microsoft surface pro 3
  UEFI system

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14.6
  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
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Aug  5 01:49:38 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  ProcEnviron:
   LANGUAGE=en_CA.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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