It was not possible to install grub, but I will be able to boot since I have already some other systems installed. Regards Wolfgang

[Wolfgang Schonert]

In case you need some more information about configuration, I will have to start another system. So far I can only say it's a Akoya with 4 kernel cpu.
Regards Wolfgang

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.63.6 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13
Uname: Linux 4.13.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
CasperVersion: 1.376.2
Date: Wed Mar 21 13:41:41 2018
InstallCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz.efi root=UUID=269D-4152 maybe-ubiquity debian-installer/language=de keyboard-configuration/layoutcode=de keyboard-configuration/variantcode=nodeadkeys iso-scan/filename=/ubuntu-16.04.4-desktop-amd64.iso boot=casper file=/cdrom/preseed/ubuntu.seed noprompt quiet splash --
LiveMediaBuild: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
ProcEnviron:
 LANGUAGE=de_DE.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

Your disk is partitioned with GPT but you are booting in bios mode instead of UEFI. This requires you to create a 1 mb bios_grub partition on the disk.