[Bug 1975388] Re: upgrade from 18.04 to 20.04 while on rollbacked kernel 4.15-0-177 - package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 failed to install/upgrade: installed grub-efi-amd64-signed

[Bijo Alex Thomas]

Agree with the comment and this particular update process is likely
acting as expected since an unsigned kernel was found. However, just to
set the context right - I didn't install the unsigned kernel. I rolled
back kernel 4.15-0-177 to work around Bug #1973482, using apt remove and
it automatically installed the unsigned version instead.

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Title:
  upgrade from 18.04 to 20.04 while on rollbacked kernel 4.15-0-177 -
  package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 failed to
  install/upgrade: installed grub-efi-amd64-signed package post-
  installation script subprocess returned error exit status 1

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[Bug 1975388] [NEW] upgrade from 18.04 to 20.04 while on rollbacked kernel 4.15-0-177 - package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 failed to install/upgrade: installed grub-efi-amd64-signe

[Bijo Alex Thomas]

Public bug reported:

Dell XPS 15 9570. Dual boot with Windows 10. Linux was on 18.04 when
attempting to upgrade to 20.04. Had previously installed kernel
4.15-0-177 which was rolled back to working kernel 4.15-0-175 due to
issues already reported in Bug #1973482. Due to rollback, there was an
unsigned image of kernel 4.15-0-177 in the machine, which caused the
upgrade 20.04 to fail with following error. Ubuntu upgrade attempted
while logged into kernel 4.15-0-175.

package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 failed to
install/upgrade: installed grub-efi-amd64-signed package post-
installation script subprocess returned error exit status 1

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2
ProcVersionSignature: Ubuntu 5.4.0-110.124-generic 5.4.181
Uname: Linux 5.4.0-110-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sat May 21 12:24:34 2022
ErrorMessage: installed grub-efi-amd64-signed package post-installation script 
subprocess returned error exit status 1
InstallationDate: Installed on 2018-09-23 (1336 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 
3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt  2.0.8
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 failed to 
install/upgrade: installed grub-efi-amd64-signed package post-installation 
script subprocess returned error exit status 1
UpgradeStatus: Upgraded to focal on 2022-05-21 (0 days ago)

** Affects: grub2-signed (Ubuntu)
 Importance: Undecided
 Status: New


** Tags: amd64 apport-package focal need-duplicate-check

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https://bugs.launchpad.net/bugs/1975388

Title:
  upgrade from 18.04 to 20.04 while on rollbacked kernel 4.15-0-177 -
  package grub-efi-amd64-signed 1.167.2+2.04-1ubuntu44.2 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/1975388/+subscriptions


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