[Touch-packages] [Bug 1646017] Re: package linux-image-4.4.0-51-generic 4.4.0-51.72 failed to install/upgrade: run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1

Several upgrades have since failed but no reports generated. I worry that my system is becoming unstable now? Did update && upgrade from command line which produced the output in attached file: ** Attachment added: "upgrade_output.txt" https://bugs.launchpad.net/ubuntu/+source/initramfs-tool

[Touch-packages] [Bug 1646017] [NEW] package linux-image-4.4.0-51-generic 4.4.0-51.72 failed to install/upgrade: run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1

Public bug reported: Nothing at this time ProblemType: Package DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-51-generic 4.4.0-51.72 ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24 Uname: Linux 4.4.0-47-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevic