Ubuntu 18.04.1 installation failure in Grub step

[lyesseb]

When I install Ubuntu 18.04.1 I get the following at Grub step:
Setting up grub-efi-amd64-signed ... ...
Installing for x86_64-efi platform.
grub-install: error: efibootmgr failed to register the boot entry: Unknown error -1.
dpkg: error processing package grub-efi-amd64-signed (--configure):
 installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
Errors were encountered while processing: grub-efi-amd64-signed

ProblemType: Bug
DistroRelease: Ubuntu 18.04.1
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 Jul 27 03:20:03 2018
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)