package linux-image-4.4.0-6-generic 4.4.0-6.21 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

apw symlinks bug

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-6-generic 4.4.0-6.21
ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
Uname: Linux 4.4.0-2-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: xnox 2288 F.... pulseaudio
Date: Fri Feb 19 10:59:58 2016
ErrorMessage: subprocess installed post-installation script returned error exit status 2
HibernationDevice: RESUME=/dev/mapper/vg0-swap
InstallationDate: Installed on 2016-01-26 (24 days ago)
InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160125)
MachineType: Dell Inc. XPS 15 9550
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-2-generic.efi.signed root=/dev/mapper/vg0-vol0 ro quiet
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: grub-pc N/A
SourcePackage: linux
Title: package linux-image-4.4.0-6-generic 4.4.0-6.21 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/14/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 01.00.05
dmi.board.name: 0N7TVV
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr01.00.05:bd10/14/2015:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: XPS 15 9550
dmi.sys.vendor: Dell Inc.