package linux-image-4.3.0-7-generic 4.3.0-7.18 failed to install/upgrade: run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2

[penalvch]

Reporting error attempting upgrade from Wily to Xenial.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: linux-image-4.3.0-7-generic 4.3.0-7.18
ProcVersionSignature: Ubuntu 4.2.0-25.30-generic 4.2.6
Uname: Linux 4.2.0-25-generic x86_64
ApportVersion: 2.19.3-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: moniker 1842 F.... pulseaudio
Date: Tue Jan 26 11:25:29 2016
ErrorMessage: run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2
HibernationDevice: RESUME=UUID=8675395b-e862-4a6b-97cf-1304c406f3fd
InstallationDate: Installed on 2015-04-25 (275 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
ProcFB:
 0 inteldrmfb
 1 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-25-generic root=UUID=90dc0a59-cdd8-4e40-9f8f-8c4836a31560 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: grub-pc 2.02~beta2-35
SourcePackage: initramfs-tools
Title: package linux-image-4.3.0-7-generic 4.3.0-7.18 failed to install/upgrade: run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to xenial on 2016-01-26 (0 days ago)
dmi.bios.date: 12/11/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L02 v02.39
dmi.board.asset.tag: MXL4090N3K
dmi.board.name: 198E
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: MXL4090N3K
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP ProDesk 400 G1 MT
dmi.sys.vendor: Hewlett-Packard