Public bug reported: Sorry if this is not helpful ! From an automated prompt to report issues & I am not sure what other info provided or required.
May be relevant background that this is a multiboot laptop & upgrade is from 16.04 via 18.04 using GUI not cli methods. Other errors apparently occurred whilst upgrading. I note there is a confirmed bug https://bugs.launchpad.net/bugs/1919019 ProblemType: Package DistroRelease: Ubuntu 20.04 Package: friendly-recovery 0.2.41ubuntu0.20.04.1 ProcVersionSignature: Ubuntu 4.4.0-206.238-generic 4.4.254 Uname: Linux 4.4.0-206-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: skip Date: Wed Mar 31 14:23:07 2021 DuplicateSignature: package:friendly-recovery:0.2.41ubuntu0.20.04.1 Setting up friendly-recovery (0.2.41ubuntu0.20.04.1) ... /usr/sbin/grub-probe: error: failed to get canonical path of `/dev/sda16'. dpkg: error processing package friendly-recovery (--configure): installed friendly-recovery package post-installation script subprocess returned error exit status 1 ErrorMessage: installed friendly-recovery package post-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2014-09-22 (2382 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) PackageArchitecture: all Python3Details: /usr/bin/python3.8, Python 3.8.5, 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 2.0.4 SourcePackage: grub2 Title: package friendly-recovery 0.2.41ubuntu0.20.04.1 failed to install/upgrade: installed friendly-recovery package post-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to focal on 2021-03-31 (0 days ago) ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1922096 Title: package friendly-recovery 0.2.41ubuntu0.20.04.1 failed to install/upgrade: installed friendly-recovery 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/+bug/1922096/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
