Failed installation of grub-efi-amd64-signed during 15.10 install

[Pancho]

During a clean install of 15.10 on the 500G hard disk on a new HP 15-ac154ng notebook in a dual-boot setting, the installation fails stating>

The 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader, the installed system will not boot.

After clicking 'OK', ubiquity crashes, and as to be expected, Ubuntu doesn't boot from the hard disk.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.365
Date: Thu May 19 17:58:21 2016
LiveMediaBuild: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
ProcEnviron:
 LANGUAGE=
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)

[Pancho (pancho.s)]

Should be the same problem as in Bug 1509620.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.