Public bug reported: I got the problem while running sudo apt-get upgrade after installing Ubuntu 18.04.3
ProblemType: Package DistroRelease: Ubuntu 18.04 Package: grub-efi-amd64 2.02-2ubuntu8.13 ProcVersionSignature: Ubuntu 4.15.0-1024.29-oem 4.15.18 Uname: Linux 4.15.0-1024-oem x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 Date: Sun Oct 27 08:05:06 2019 DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-bionic-amd64-20180608-47+loki-n3-v3-whl+X32 ErrorMessage: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2019-10-27 (0 days ago) InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-1024-oem.efi.signed root=UUID=507aecdc-c42f-421d-bdde-05dd567a439c ro mem_sleep_default=deep usbcore.quirks=2386:3119:k quiet splash vt.handoff=1 Python3Details: /usr/bin/python3.6, Python 3.6.8, python3-minimal, 3.6.7-1~18.04 PythonDetails: /usr/bin/python2.7, Python 2.7.15+, python-minimal, 2.7.15~rc1-1 RelatedPackageVersions: dpkg 1.19.0.5ubuntu2.3 apt 1.6.12 SourcePackage: grub2 Title: package grub-efi-amd64 2.02-2ubuntu8.13 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub2 (Ubuntu) Importance: Undecided Status: Invalid ** Tags: amd64 apport-package bionic need-duplicate-check ** Changed in: grub2 (Ubuntu) Status: New => Invalid ** Converted to question: https://answers.launchpad.net/ubuntu/+source/grub2/+question/685446 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1850014 Title: package grub-efi-amd64 2.02-2ubuntu8.13 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1850014/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs