[Bug 1981531] Re: package grub-efi-amd64 2.06-2ubuntu7 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1

[Nick Crabtree]

The symlink from /dev/disk/by-id/nvme-
PM981_NVMe_Samsung_512GB__S3ZHNE0K806132-part4 to /dev/nvme0n1p4
vanished during the upgrade process. This partition is my (un-mirrored)
zfs rpool and definitely still exists on disk. I updated my zfs pool to
use the /dev/nvme0n1p4 device rather than the /dev/disk/by-id name and
all is now working fine.

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Title:
  package grub-efi-amd64 2.06-2ubuntu7 failed to install/upgrade:
  installed grub-efi-amd64 package post-installation script subprocess
  returned error exit status 1

Status in grub2 package in Ubuntu:
  Incomplete

Bug description:
  Upgrading from 21.10 to 22.04, root-on-zfs.

  ProblemType: Package
  DistroRelease: Ubuntu 22.04
  Package: grub-efi-amd64 2.06-2ubuntu7
  ProcVersionSignature: Ubuntu 5.13.0-52.59-generic 5.13.19
  Uname: Linux 5.13.0-52-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Wed Jul 13 06:37:26 2022
  ErrorMessage: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1
  Python3Details: /usr/bin/python3.10, Python 3.10.4, python3-minimal, 3.10.4-0ubuntu2
  PythonDetails: /usr/bin/python3.10, Python 3.10.4, python-is-python3, 3.9.2-2
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   dpkg 1.21.1ubuntu2.1
   apt  2.4.5
  SourcePackage: grub2
  Title: package grub-efi-amd64 2.06-2ubuntu7 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1
  UpgradeStatus: Upgraded to jammy on 2022-07-13 (0 days ago)
  mtime.conffile..etc.logrotate.d.apport: 2022-04-06T10:45:01.573806

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