Ubunto 20.04 desktop installer crash

[John Gilliom]

Gigabyte GA-EP43-UD3L motherboard
Intel Core 2 Duo E8400
Sandisk SDSSDXPS-480G-G25
8 GB DDR2 RAM
2 x 2.0 GB Seagate SATA HDD
MB BIOS does not support boot from USB devices except optical drives. Installer image was copied to one of the HDDs using previous installed OS, CentOS 8.

dd if=/dev/sgh of=/dev/sdg

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity 20.04.15
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.445
CurrentDesktop: ubuntu:GNOME
Date: Sun May 10 14:49:20 2020
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed initrd=/casper/initrd quiet splash --- maybe-ubiquity
LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
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)