package grub-common 2.04-1ubuntu26 failed to install/upgrade: end of file on stdin at conffile prompt

[Kristi Bektashi]

a random message appeared after i booted ubuntu 20.04 beta and i clicked report

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: grub-common 2.04-1ubuntu26
ProcVersionSignature: Ubuntu 5.4.0-24.28-generic 5.4.30
Uname: Linux 5.4.0-24-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27
AptOrdering:
 grub2-common:amd64: Install
 grub-pc:amd64: Install
 grub-pc-bin:amd64: Install
 grub-common:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Wed Apr 15 07:17:02 2020
ErrorMessage: end of file on stdin at conffile prompt
InstallationDate: Installed on 2020-03-12 (36 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-24-generic root=UUID=c5d7078d-7ec9-4219-9158-74b7aa24a1f4 ro quiet splash vt.handoff=7
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2
SourcePackage: grub2
Title: package grub-common 2.04-1ubuntu26 failed to install/upgrade: end of file on stdin at conffile prompt
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.grub.d.10_linux: [deleted]
modified.conffile..etc.grub.d.10_linux_zfs: [deleted]
modified.conffile..etc.grub.d.20_linux_xen: [deleted]
modified.conffile..etc.grub.d.30_os-prober: [deleted]
modified.conffile..etc.grub.d.30_uefi-firmware: [deleted]

[Launchpad Janitor (janitor)]

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