Installation failed late because of UEFI partition was not created during manual disk set up

[Frans Oilinki]

Fresh installation of Ubuntu 17.10.1. Apparently this new motherboard is configured in UEFI mode. Because wanting total control of the partitioning schema used, I chose manual partitioning in the beginning of the installation. When installing "grub-uefi-something-whatever-64" (cannot now verify the exact name of the package, because I cannot find how to start terminal application in this aborted installation), it failed due to missing UEFI system partition. When I acknowledged the failure there was also this crash.

So I see two issues here:

1. abrupt crash of the installer
2. not warning of the missing UEFI partition before accepting the manually created partition table (in an earlier installation attempt there was a warning about swap not being encrypted and subsequent refusal to continue the installation, meaning there seems to be some other checks of similar nature in place).

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: ubiquity 17.10.10 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13
Uname: Linux 4.13.0-21-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CasperVersion: 1.387
CurrentDesktop: ubuntu:GNOME
Date: Mon Jan 15 21:03:40 2018
LiveMediaBuild: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 LC_NUMERIC=C.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Frans Oilinki (moilinki)]

Calling 'apt-install grub-efi-amd64-signed' failed