package linux-image-4.4.0-2-generic 4.4.0-2.16 failed to install/upgrade: run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2

[Lonnie Lee Best]

I got this error while upgrading from Ubuntu 15.10 to 16.04 (Alpha 2 I think).

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-2-generic 4.4.0-2.16
ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
Uname: Linux 4.2.0-27-generic x86_64
ApportVersion: 2.19.4-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: lonnie 1656 F.... pulseaudio
 /dev/snd/controlC0: lonnie 1656 F.... pulseaudio
Date: Fri Feb 5 05:38:49 2016
ErrorMessage: run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2
HibernationDevice: RESUME=UUID=154ec9be-4204-4fe0-9dcd-3e13f4b66375
InstallationDate: Installed on 2015-10-28 (99 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: Hewlett-Packard HP Pavilion dv8 Notebook PC
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-27-generic root=UUID=97d572db-5554-4fa8-915d-e8bf227ce4a5 ro quiet splash 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~beta2-35ubuntu1
SourcePackage: initramfs-tools
Title: package linux-image-4.4.0-2-generic 4.4.0-2.16 failed to install/upgrade: run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2
UpgradeStatus: Upgraded to xenial on 2016-02-05 (0 days ago)
dmi.bios.date: 05/31/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.25
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 7001
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 35.35
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.25:bd05/31/2010:svnHewlett-Packard:pnHPPaviliondv8NotebookPC:pvr0499220000241210001040000:rvnHewlett-Packard:rn7001:rvr35.35:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv8 Notebook PC
dmi.product.version: 0499220000241210001040000
dmi.sys.vendor: Hewlett-Packard