[Bug 1884156] Re: package grub-efi-amd64-signed 1.142.1+2.04-1ubuntu26 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 10

[burghard.britzke]

I found in n the syslog the following which fails at any new trial of
the installation of this package which occures during every succeeding
update tial:

...
Jul 10 07:02:03 nuk os-prober: debug: running /usr/lib/os-probes/10zvol-test on /dev/nvme0n1p4
Jul 10 07:02:03 nuk os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/nvme0n1p4
Jul 10 07:02:03 nuk 50mounted-tests: debug: creating device mapper device /dev/mapper/osprober-linux-nvme0n1p4
Jul 10 07:02:03 nuk kernel: [648127.552406] device-mapper: table: 253:0: linear: Device lookup failed
Jul 10 07:02:03 nuk kernel: [648127.552408] device-mapper: ioctl: error adding target to table
Jul 10 07:02:03 nuk zed: eid=1053 class=history_event pool_guid=0xB050B8DF7FC7CA35  
Jul 10 07:02:03 nuk zed: eid=1054 class=history_event pool_guid=0xB050B8DF7FC7CA35  
Jul 10 07:02:03 nuk zed: eid=1055 class=history_event pool_guid=0xB050B8DF7FC7CA35  
Jul 10 07:02:03 nuk zed: eid=1056 class=history_event pool_guid=0xB050B8DF7FC7CA35  
Jul 10 07:02:03 nuk AptDaemon.Worker: CRITICAL: grub-efi-amd64-signed: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 10
Jul 10 07:02:03 nuk org.debian.apt[612864]: /usr/lib/python3/dist-packages/aptdaemon/progress.py:490: Warning: Source ID 49 was not found when attempting to remove it
Jul 10 07:02:03 nuk org.debian.apt[612864]:   GLib.source_remove(id)
Jul 10 07:02:03 nuk org.debian.apt[612864]: /usr/lib/python3/dist-packages/aptdaemon/progress.py:490: Warning: Source ID 50 was not found when attempting to remove it
Jul 10 07:02:03 nuk org.debian.apt[612864]:   GLib.source_remove(id)
Jul 10 07:02:03 nuk org.debian.apt[612864]: 07:02:03 AptDaemon.Worker [CRITICAL]: grub-efi-amd64-signed: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 10
Jul 10 07:02:03 nuk AptDaemon.Worker: INFO: Finished transaction /org/debian/apt/transaction/803893427a9149759c2cf0d7828f7804
Jul 10 07:02:03 nuk org.debian.apt[612864]: /usr/lib/python3/dist-packages/aptdaemon/progress.py:490: Warning: Source ID 53 was not found when attempting to remove it
Jul 10 07:02:03 nuk org.debian.apt[612864]:   GLib.source_remove(id)
Jul 10 07:02:03 nuk org.debian.apt[612864]: /usr/lib/python3/dist-packages/aptdaemon/progress.py:490: Warning: Source ID 54 was not found when attempting to remove it
Jul 10 07:02:03 nuk org.debian.apt[612864]:   GLib.source_remove(id)
Jul 10 07:02:03 nuk org.debian.apt[612864]: 07:02:03 AptDaemon.Worker [INFO]: Finished transaction /org/debian/apt/transaction/803893427a9149759c2cf0d7828f7804
Jul 10 07:02:03 nuk zed: eid=1057 class=history_event pool_guid=0xB050B8DF7FC7CA35  
Jul 10 07:02:03 nuk zed: eid=1058 class=history_event pool_guid=0xB050B8DF7FC7CA35  
...
In my case /dev/nvme0n1p4 is the rpool partition (the tests for the preceeding partitions (EFI,SWAP and bpool) passed or are skipped.

A deinstallation and reinstallation of the package brings no healing but
the system remains bootable.

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https://bugs.launchpad.net/bugs/1884156

Title:
  package grub-efi-amd64-signed 1.142.1+2.04-1ubuntu26 failed to
  install/upgrade: installed grub-efi-amd64-signed package post-
  installation script subprocess returned error exit status 10

Status in grub2-signed package in Ubuntu:
  Confirmed

Bug description:
  -

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: grub-efi-amd64-signed 1.142.1+2.04-1ubuntu26
  ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
  Uname: Linux 5.4.0-37-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.3
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Fri Jun 19 00:59:48 2020
  DuplicateSignature:
   package:grub-efi-amd64-signed:1.142.1+2.04-1ubuntu26
   Setting up grub-efi-amd64-signed (1.142.1+2.04-1ubuntu26) ...
   dpkg: error processing package grub-efi-amd64-signed (--configure):
    installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 10
  ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 10
  InstallationDate: Installed on 2020-05-21 (28 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: /usr/bin/python2.7, Python 2.7.18rc1, python-is-python2, 2.7.17-4
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.2ubuntu0.1
  SourcePackage: grub2-signed
  Title: package grub-efi-amd64-signed 1.142.1+2.04-1ubuntu26 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 10
  UpgradeStatus: No upgrade log present (probably fresh install)

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