Public bug reported:
this happened on first apt-get install upgrade after fresh Ubuntu 20.04
install from scratch not any update
lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
apt-cache policy grub2
grub2:
Installed: (none)
Candidate: 2.04-1ubuntu26
Version table:
2.04-1ubuntu26 500
500 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
uname -m && uname -r && cat /etc/*release
x86_64
5.4.0-14-generic
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS"
NAME="Ubuntu"
VERSION="20.04 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04 LTS"
VERSION_ID="20.04"
ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: grub-pc 2.04-1ubuntu26
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
Date: Tue May 5 10:28:31 2020
ErrorMessage: installed grub-pc package post-installation script subprocess
returned error exit status 1
InstallationDate: Installed on 2020-05-05 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200309)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-14-generic
root=UUID=2a498b8e-c1b0-4cb8-9440-fccd950ec4ff 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-pc 2.04-1ubuntu26 failed to install/upgrade: installed
grub-pc package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-package focal
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https://bugs.launchpad.net/bugs/1876943
Title:
package grub-pc 2.04-1ubuntu26 failed to install/upgrade: installed
grub-pc package post-installation script subprocess returned error
exit status 1
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