package linux-image-4.4.0-42-generic 4.4.0-42.62~14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

Automatic update failed while installing. The /boot partition is full and that seems to be the cause of the failure. Could there be a problem with pre-install checks?

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: linux-image-4.4.0-42-generic 4.4.0-42.62~14.04.1
ProcVersionSignature: Ubuntu 4.4.0-36.55~14.04.1-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
Date: Tue Oct 11 07:47:26 2016
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationDate: Installed on 2014-05-22 (873 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.14
SourcePackage: linux-lts-xenial
Title: package linux-image-4.4.0-42-generic 4.4.0-42.62~14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)