install crashes when installing boot loader on dual bootsystem

[Richard Antholine]

I first deleted partitions on 4T HD so I could install Ubuntu 20.04 LTS on its own HD. Tried direct install from CD and crashed when trying to install boot loader to /dev/nvmeOnp1. I believe this is where the Windows 10 Home boot resides. It Froze the system and would not quit. Had to hard power off, power on and rebooted to Windows without problem. Tried "Try Ubuntu" and using the icon to install. Crashed same place. Tried again installing, crashed same place but this time it permitted me to report error. I have used older versions with this Windows 10 Home with no problems using same hardware.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity 20.04.15.2 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.445.1
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec 5 15:53:43 2020
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed initrd=/casper/initrd quiet splash --- maybe-ubiquity
LiveMediaBuild: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
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)