package shim-signed 1.51.3+15.7-0ubuntu1 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 32

[Jim Schaffer]

errored on upgrade. Said something about something was lost.

ProblemType: Package
DistroRelease: Ubuntu 22.04
Package: shim-signed 1.51.3+15.7-0ubuntu1
ProcVersionSignature: Ubuntu 5.19.0-32.33~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-32-generic x86_64
.proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
BootEFIContents:
 BOOTX64.CSV
 grub.cfg
 grubx64.efi
 mmx64.efi
 shimx64.efi
CasperMD5CheckResult: unknown
Date: Wed Mar 8 08:42:51 2023
ErrorMessage: installed shim-signed package post-installation script subprocess returned error exit status 32
InstallationDate: Installed on 2021-07-30 (585 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
Python3Details: /usr/bin/python3.10, Python 3.10.6, python3-minimal, 3.10.6-1~22.04
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.21.1ubuntu2.1
 apt 2.4.8
SecureBoot: 6 0 0 0 1
ShimDiff: Binary files /boot/efi/EFI/ubuntu/shimx64.efi and /usr/lib/shim/shimx64.efi.signed differ
SourcePackage: shim-signed
Title: package shim-signed 1.51.3+15.7-0ubuntu1 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 32
UpgradeStatus: Upgraded to jammy on 2022-10-22 (136 days ago)

[Launchpad Janitor (janitor)]

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

[Steve Langasek (vorlon)]

The error in your logs is:

Setting up shim-signed (1.51.3+15.7-0ubuntu1) ...
update-alternatives: using /usr/lib/shim/shimx64.efi.signed.latest to provide /usr/lib/shim/shimx64.efi.signed (shimx64.efi.signed) in auto mode
mount: /var/lib/grub/esp: special device /, does not exist.
dpkg: error processing package shim-signed (--configure):
 installed shim-signed package post-installation script subprocess returned error exit status 32

Please run dpkg-reconfigure grub-common to tell grub (and thus shim) where your EFI System Partition is. Without this information being correct in the debconf database, shim cannot install an updated bootloader.