package backport-iwlwifi-dkms 8324-0ubuntu1 failed to install/upgrade: installed backport-iwlwifi-dkms package post-installation script subprocess returned error exit status 10

[Cedric BIJON]

The backport-iwlwifi-dkms package instalation seems incompatible with the kernel version 5.6.13-050613-generic.

sudo apt install backport-iwlwifi-dkms

Selecting previously unselected package backport-iwlwifi-dkms.
(Reading database ... 318707 files and directories currently installed.)
Preparing to unpack .../backport-iwlwifi-dkms_8324-0ubuntu1_all.deb ...
Unpacking backport-iwlwifi-dkms (8324-0ubuntu1) ...
Setting up backport-iwlwifi-dkms (8324-0ubuntu1) ...
Loading new backport-iwlwifi-8324 DKMS files...
Building for 5.6.13-050613-generic
Building initial module for 5.6.13-050613-generic
ERROR (dkms apport): kernel package linux-headers-5.6.13-050613-generic is not supported
Error! Bad return status for module build on kernel: 5.6.13-050613-generic (x86_64)
Consult /var/lib/dkms/backport-iwlwifi/8324/build/make.log for more information.
dpkg: error processing package backport-iwlwifi-dkms (--configure):
 installed backport-iwlwifi-dkms package post-installation script subprocess returned error exit status 10
Errors were encountered while processing:
 backport-iwlwifi-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)

------------------------------------------------------------------------------
lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
--------------------------------------------------------------------------------
inxi -Fxz
System: Kernel: 5.6.13-050613-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Gnome 3.36.1
           Distro: Ubuntu 20.04 LTS (Focal Fossa)
Machine: Type: Laptop System: Notebook product: P65_P67SE v: N/A serial: <filter>
           Mobo: Notebook model: P65_P67SE serial: <filter> UEFI: American Megatrends v: 1.03.09 date: 03/05/2015
Battery: ID-1: BAT0 charge: 41.6 Wh condition: 41.6/60.2 Wh (69%) model: Notebook BAT status: Full
CPU: Topology: Quad Core model: Intel Core i7-4710HQ bits: 64 type: MT MCP arch: Haswell rev: 3 L2 cache: 6144 KiB
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 39904
           Speed: 798 MHz min/max: 800/3500 MHz Core speeds (MHz): 1: 798 2: 798 3: 798 4: 798 5: 798 6: 799 7: 798 8: 798
Graphics: Device-1: Intel 4th Gen Core Processor Integrated Graphics vendor: CLEVO/KAPOK driver: i915 v: kernel
           bus ID: 00:02.0
           Device-2: NVIDIA GM204M [GeForce GTX 970M] vendor: CLEVO/KAPOK driver: nvidia v: 440.64 bus ID: 01:00.0
           Display: x11 server: X.Org 1.20.8 driver: modesetting,nvidia unloaded: fbdev,nouveau,vesa
           resolution: 1920x1080~60Hz
           OpenGL: renderer: GeForce GTX 970M/PCIe/SSE2 v: 4.6.0 NVIDIA 440.64 direct render: Yes
Audio: Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio vendor: CLEVO/KAPOK driver: snd_hda_intel v: kernel
           bus ID: 00:03.0
           Device-2: Intel 8 Series/C220 Series High Definition Audio vendor: CLEVO/KAPOK driver: snd_hda_intel v: kernel
           bus ID: 00:1b.0
           Sound Server: ALSA v: k5.6.13-050613-generic
Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: CLEVO/KAPOK driver: r8169 v: kernel
           port: d000 bus ID: 03:00.1
           IF: enp3s0f1 state: down mac: <filter>
           Device-2: Intel Wireless 7265 driver: iwlwifi v: kernel port: d000 bus ID: 04:00.0
           IF: wlp4s0 state: up mac: <filter>
           IF-ID-1: docker0 state: down mac: <filter>
           IF-ID-2: virbr0 state: down mac: <filter>
           IF-ID-3: virbr0-nic state: down mac: <filter>
Drives: Local Storage: total: 4.78 TiB used: 1.73 TiB (36.2%)
           ID-1: /dev/sda vendor: Seagate model: ST1000LM024 HN-M101MBB size: 931.51 GiB temp: 37 C
           ID-2: /dev/sdb vendor: Crucial model: CT250MX200SSD4 size: 232.89 GiB temp: 42 C
           ID-3: /dev/sdc type: USB vendor: Western Digital model: WD40EFRX-68N32N0 size: 3.64 TiB
Partition: ID-1: / size: 29.35 GiB used: 22.25 GiB (75.8%) fs: ext4 dev: /dev/sdb7
Sensors: System Temperatures: cpu: 63.0 C mobo: N/A gpu: nvidia temp: 72 C
           Fan Speeds (RPM): N/A
Info: Processes: 373 Uptime: 1h 38m Memory: 15.52 GiB used: 3.83 GiB (24.6%) Init: systemd runlevel: 5 Compilers:
           gcc: 9.3.0 Shell: bash v: 5.0.16 inxi: 3.0.38

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: backport-iwlwifi-dkms 8324-0ubuntu1
Uname: Linux 5.6.13-050613-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27
AptOrdering:
 backport-iwlwifi-dkms:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri May 15 02:06:12 2020
ErrorMessage: installed backport-iwlwifi-dkms package post-installation script subprocess returned error exit status 10
InstallationDate: Installed on 2020-03-23 (52 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200315)
PackageArchitecture: all
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.1
SourcePackage: backport-iwlwifi-dkms
Title: package backport-iwlwifi-dkms 8324-0ubuntu1 failed to install/upgrade: installed backport-iwlwifi-dkms package post-installation script subprocess returned error exit status 10
UpgradeStatus: No upgrade log present (probably fresh install)