[Bug 1811382] [NEW] While EFI/Boot and EFI/ubuntu is already present in EFI System Partition grub-installer failed

[Pascal Mons]

Public bug reported:

I was trying to install Bionic 18.04.1 on my Laptop from a bootable USB
stick.

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: Fri Jan 11 07:34:34 2019
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: grub-installer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic ubiquity-18.04.14.6 ubuntu

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https://bugs.launchpad.net/bugs/1811382

Title:
  While EFI/Boot and EFI/ubuntu is already present in EFI System
  Partition grub-installer failed

Status in grub-installer package in Ubuntu:
  New

Bug description:
  I was trying to install Bionic 18.04.1 on my Laptop from a bootable
  USB stick.

  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: Fri Jan 11 07:34:34 2019
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
  LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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