[Bug 1803439] Re: package friendly-recovery 0.2.31ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Launchpad Bug Tracker]

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

** Changed in: grub2 (Ubuntu)
       Status: New => Confirmed

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Title:
  package friendly-recovery 0.2.31ubuntu2 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in grub2 package in Ubuntu:
  Confirmed

Bug description:
  error during do-release-upgrade in WSL

  From: 16.04.5 LTS
  To: 18.04.1 LTS
  Expected result: working 18.04.1 LTS running in WSL
  Acutal result: errors during upgrade and reported version still 16.04.5 LTS

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: friendly-recovery 0.2.31ubuntu2
  ProcVersionSignature: Microsoft 4.4.0-18277.1000-Microsoft 4.4.35
  Uname: Linux 4.4.0-18277-Microsoft x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  Date: Wed Nov 14 18:08:35 2018
  Dmesg: [    0.012195]  Microsoft 4.4.0-18277.1000-Microsoft 4.4.35
  DuplicateSignature:
   package:friendly-recovery:0.2.31ubuntu2
   Setting up friendly-recovery (0.2.31ubuntu2) ...
   /usr/sbin/grub-probe: error: failed to get canonical path of `rootfs'.
   dpkg: error processing package friendly-recovery (--configure):
    subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  PackageArchitecture: all
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.5
   apt  1.2.29
  SourcePackage: grub2
  Title: package friendly-recovery 0.2.31ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: Upgraded to xenial on 2018-11-14 (0 days ago)
  upstart.friendly-recovery.override: manual

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