package initramfs-tools 0.130ubuntu3.9 failed to install/upgrade: installed initramfs-tools package post-installation script subprocess returned error exit status 1

[H.-R. Oberhage]

Problem occurred during a (longer) system update

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: initramfs-tools 0.130ubuntu3.9
ProcVersionSignature: Ubuntu 4.18.0-17.18~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-17-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
Date: Wed Jun 24 21:21:05 2020
ErrorMessage: installed initramfs-tools package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2015-07-08 (1813 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.9, python3-minimal, 3.6.7-1~18.04
PythonDetails: /usr/bin/python2.7, Python 2.7.17, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2.3
 apt 1.6.12ubuntu0.1
SourcePackage: initramfs-tools
Title: package initramfs-tools 0.130ubuntu3.9 failed to install/upgrade: installed initramfs-tools package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Kai Kasurinen (kai-kasurinen)]

Processing triggers for initramfs-tools (0.130ubuntu3.9) ...
update-initramfs: Generating /boot/initrd.img-4.18.0-17-generic
Fatal: open /initrd.img: No such file or directory
run-parts: /etc/initramfs/post-update.d//runlilo exited with return code 1

[H.-R. Oberhage (oberhage)]

It is/was probably just a transitional problem: After using the system for some time now, I experience no problem. It boots as reliable as before after it had to re-run the lilo-configuration again, anyhow, because of me phasing out old(er) kernels. Thanks!