package friendly-recovery 0.2.31ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[KrishnaNand PattabiRaman]

Software upgades not getting installed, since 3 months

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: friendly-recovery 0.2.31ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-83.106-generic 4.4.70
Uname: Linux 4.4.0-83-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: amd64
Date: Mon May 21 06:55:20 2018
DpkgHistoryLog:
 Start-Date: 2018-05-21 06:54:54
 Commandline: aptdaemon role='role-commit-packages' sender=':1.145'
 Install: python-dnspython:amd64 (1.12.0-1, automatic), samba:amd64 (2:4.3.11+dfsg-0ubuntu0.16.04.13), samba-dsdb-modules:amd64 (2:4.3.11+dfsg-0ubuntu0.16.04.13, automatic), libaio1:amd64 (0.3.110-2, automatic), tdb-tools:amd64 (1.3.8-2, automatic), attr:amd64 (1:2.4.47-2, automatic), samba-vfs-modules:amd64 (2:4.3.11+dfsg-0ubuntu0.16.04.13, automatic)
ErrorMessage: subprocess installed post-installation script returned error exit status 127
InstallationDate: Installed on 2017-06-14 (340 days ago)
InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.4
 apt 1.2.26
SourcePackage: friendly-recovery
Title: package friendly-recovery 0.2.31ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
UpgradeStatus: Upgraded to xenial on 2017-07-12 (312 days ago)

[Juhani Numminen (jsonic)]

The error message complains about /etc/default/grub, please attach that file.

[Launchpad Janitor (janitor)]

[Expired for friendly-recovery (Ubuntu) because there has been no activity for 60 days.]