Grub failed to install on freshly made VM on Hyper-V

[Ben Freeman]

Dell PowerEdge R730, 2x Xeon E5-2620 v3, 32 GB DDR4, 8x 1.2 TB Seagate enterprise SAS drives in RAID5, Server 2019 Standard with Hyper-V installed. Tried to install Ubuntu Desktop 18 as a UEFI VM with a 128 GB virtual hard drive and 4 GB of RAM. Everything went smoothly until it said it could not install Grub.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14.12
ProcVersionSignature: Ubuntu 4.18.0-15.16~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CasperVersion: 1.394
CurrentDesktop: ubuntu:GNOME
Date: Sun Jul 21 18:50:10 2019
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
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: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)