Public bug reported:
The upgrade required boot and boot/efi mounted ... but then grub-install
failed as these were mounted...
ProblemType: Package
DistroRelease: Ubuntu 26.04
Package: grub-efi-amd64-signed 1.215+2.14-2ubuntu1
ProcVersionSignature: Ubuntu 6.8.0-79.79-generic 6.8.12
Uname: Linux 6.8.0-79-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Thu Oct 22 23:57:40 2026
ErrorMessage: old grub-efi-amd64-signed package postinst maintainer script
subprocess failed with exit status 32
InstallationDate: Installed on 2018-01-23 (3194 days ago)
InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.2)
Python3Details: /usr/bin/python3.14, Python 3.14.4, python3-minimal,
3.14.3-0ubuntu2
PythonDetails: N/A
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
dpkg 1.23.7ubuntu1
apt 3.2.0
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.215+2.14-2ubuntu1 failed to
install/upgrade: old grub-efi-amd64-signed package postinst maintainer script
subprocess failed with exit status 32
UpgradeStatus: Upgraded to resolute on 2026-10-22 (0 days ago)
** Affects: grub2-signed (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-package need-duplicate-check resolute
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https://bugs.launchpad.net/bugs/2171933
Title:
package grub-efi-amd64-signed 1.215+2.14-2ubuntu1 failed to
install/upgrade: old grub-efi-amd64-signed package postinst maintainer
script subprocess failed with exit status 32
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