Public bug reported: I am using an older machine and my version of 20.04 failed to work after a move to a new location and a long period of storage. I tried reinstalling the LTS, but still no luck. I tried 21.04 and the same result, so I think this bug has to do with the integrated graphics on my Gigabit MB being faulty, I have installed a nVidia Quatro K2200, and it seems to be working fine now.
Sorry for the false positive. Rod Hutchinson ProblemType: Package DistroRelease: Ubuntu 21.04 Package: grub-efi-amd64-signed 1.158+2.04-1ubuntu37 ProcVersionSignature: Ubuntu 5.8.0-36.40+21.04.1-generic 5.8.18 Uname: Linux 5.8.0-36-generic x86_64 ApportVersion: 2.20.11-0ubuntu55 AptOrdering: usbutils:amd64: Install grub-efi-amd64-signed:amd64: Install NULL: ConfigurePending Architecture: amd64 CasperMD5CheckResult: skip Date: Sun Feb 7 06:49:01 2021 ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2021-02-07 (0 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210123) Python3Details: /usr/bin/python3.9, Python 3.9.1+, python3-minimal, 3.9.0-3ubuntu1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.20.5ubuntu3 apt 2.1.18 SourcePackage: grub2-signed Title: package grub-efi-amd64-signed 1.158+2.04-1ubuntu37 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub2-signed (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package hirsute -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1914956 Title: package grub-efi-amd64-signed 1.158+2.04-1ubuntu37 failed to install/upgrade: installed grub-efi-amd64-signed 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-signed/+bug/1914956/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs