package initramfs-tools 0.136ubuntu6.3 failed to install/upgrade: installed initramfs-tools package post-installation script subprocess returned error exit status 1

[janl]

do-release-upgrade said it would need 1.5G free diskspace, used 1.7G and the disk was then full.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: initramfs-tools 0.136ubuntu6.3
ProcVersionSignature: Ubuntu 4.15.0-118.119-generic 4.15.18
Uname: Linux 4.15.0-118-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sun Oct 4 20:45:27 2020
ErrorMessage: installed initramfs-tools package post-installation script subprocess returned error exit status 1
PackageArchitecture: all
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18rc1, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.1
SourcePackage: initramfs-tools
Title: package initramfs-tools 0.136ubuntu6.3 failed to install/upgrade: installed initramfs-tools package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to focal on 2020-10-04 (0 days ago)

[Brian Murray (brian-murray)]

Could you please run 'apport-collect 1898482' in a terminal? This will gather log files related to your upgrade which will be helpful in determining what went wrong.

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]