Ubuntu 18.04 won't install

[Anastasia]

This error occurs while installing Ubuntu 18.04. I created a partition with 550MB for EFI booting and the rest (about 250Gb) left for Ext4 with mount point /

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14.14 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 5.3.0-28.30~18.04.1-generic 5.3.13
Uname: Linux 5.3.0-28-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: amd64
CasperVersion: 1.394.3
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 3 16:12:00 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1)
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: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[jhthayer (jhthayer)]

I have lost count of the number of times I've tried this install. But it seems as if the problem lies in Systemd starting, or trying to start services which, for whatever reason, won't start, the result hanging the process, and there is no recourse. Music Player Daemon has done this nearly every time, but there have been times when the internet connection seems inhibited, again, I can't tell why. Since the thing won't actually boot, it is pretty hard to do anything about it, short of going to some distro that doesn't use systemd.