RTL8812AU/21AU Wireless drivers vs. RTL8814AU for Asus AC68, AC1900 wireless adapter on Ubuntu 20.04

Question

A few months ago, this worked on my Ubuntu 18.04 LTS. But I'm on a new install of Ubuntu 20.04 and the instructions changed.

Important!

8814au chipset support is turned off. 8814au got itself a new, standalone driver in this link below

You should update this driver and compile/install one more time to ensure the 8814au chipset kernel module collides with the newer driver. If your planning to use them both in the same time.

https://github.com/aircrack-ng/rtl8814au

I head over to https://github.com/aircrack-ng/rtl8814au

And there are many instructions and I cannot tell if I'm supposed to follow all of them or be able to pick and choose which ones I need.

Can somebody please advise?

This is the device: https://www.asus.com/ca-en/Networking/USB-AC68/

Edit: @Jeremy's answer works perfectly but now as I'm trying to install other applications, I'm seeing an error on every install although the target application seems to work fine

ThinkPad-T420:~/Downloads/jetbrains-toolbox-1.19.7784$ sudo apt install ffmpeg
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  adium-theme-ubuntu command-not-found-data cpp-7 diffstat enchant fwupdate
  gcc-7-base gcc-8-base geoip-database gir1.2-gtksource-3.0
  gnome-software-common gnome-user-guide ifupdown iputils-arping
  libappstream-glib8 libapt-pkg-perl libargon2-0 libart-2.0-2
  libb-hooks-op-check-perl libbind9-160 libboost-system1.65.1
  libboost-thread1.65.1 libcamel-1.2-61 libcapture-tiny-perl libcdio17
  libcgi-fast-perl libcgi-pm-perl libclass-accessor-perl
  libclass-method-modifiers-perl libclass-xsaccessor-perl libclone-perl
  libcpanel-json-xs-perl libdevel-callchecker-perl libdevel-size-perl
  libdigest-bubblebabble-perl libdns-export1100 libdns1100
  libdynaloader-functions-perl libebook-contacts-1.2-2 libecal-1.2-19
  libedataserver-1.2-23 libemail-valid-perl libenchant1c2a libexempi3
  libexporter-tiny-perl libfcgi-perl libffi6 libfile-copy-recursive-perl
  libfile-find-rule-perl libfuture-perl libgail-3-0 libgdbm5 libgeoip1
  libgmime-3.0-0 libgtksourceview-3.0-1 libgtksourceview-3.0-common
  libgutenprint-common libgutenprint2 libgweather-3-15 libhogweed4
  libhunspell-1.6-0 libicu60 libilmbase12 libindicator3-7
  libio-async-loop-epoll-perl libio-async-perl libio-pty-perl
  libio-string-perl libip4tc0 libip6tc0 libiptc0 libirs160 libisc-export169
  libisc169 libisccc160 libisccfg160 libisl19 libjson-c3 libjson-maybexs-perl
  liblinux-epoll-perl liblist-compare-perl liblist-moreutils-perl liblouis14
  liblwres160 libmagickcore-6.q16-3 libmagickcore-6.q16-3-extra
  libmagickwand-6.q16-3 libmozjs-52-0 libncurses5 libncursesw5 libnet-dns-perl
  libnet-dns-sec-perl libnet-domain-tld-perl libnet-ip-perl libnettle6
  libnss-myhostname libntfs-3g88 libnumber-compare-perl liboauth0 libopenexr22
  libpackage-stash-xs-perl libparse-debianchangelog-perl libpath-tiny-perl
  libperl4-corelibs-perl libperl5.26 libpoppler73 libprotobuf10
  libpython2.7-minimal libpython2.7-stdlib libpython3.6-minimal libreadline7
  libreadonly-perl libref-util-perl libref-util-xs-perl librole-tiny-perl
  libsane1 libsereal-decoder-perl libsereal-encoder-perl libsereal-perl
  libssl1.0.0 libstrictures-perl libstruct-dumb-perl
  libsub-exporter-progressive-perl libsub-identify-perl libtest-fatal-perl
  libtest-refcount-perl libtext-glob-perl libtext-levenshtein-perl libtinfo5
  libtype-tiny-perl libunicode-utf8-perl libusbmuxd4 libvariable-magic-perl
  libxml-namespacesupport-perl libxml-sax-base-perl libxml-sax-expat-perl
  libxml-sax-perl libxml-simple-perl libxml-writer-perl libyaml-libyaml-perl
  libzeitgeist-2.0-0 light-themes linux-headers-generic-hwe-18.04
  linux-hwe-5.4-headers-5.4.0-58 multiarch-support nplan patchutils pppconfig
  pppoeconf python3-asn1crypto python3-oauth python3-zope.interface
  python3.6-minimal qpdf t1utils ubuntu-system-service
  xserver-xorg-core-hwe-18.04 xserver-xorg-hwe-18.04
  xserver-xorg-input-all-hwe-18.04 xserver-xorg-input-libinput-hwe-18.04
  xserver-xorg-input-wacom-hwe-18.04 xserver-xorg-legacy-hwe-18.04
  xserver-xorg-video-all-hwe-18.04 xserver-xorg-video-amdgpu-hwe-18.04
  xserver-xorg-video-ati-hwe-18.04 xserver-xorg-video-fbdev-hwe-18.04
  xserver-xorg-video-intel-hwe-18.04 xserver-xorg-video-nouveau-hwe-18.04
  xserver-xorg-video-qxl-hwe-18.04 xserver-xorg-video-radeon-hwe-18.04
  xserver-xorg-video-vmware-hwe-18.04
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  i965-va-driver intel-media-va-driver libaacs0 libaom0 libass9 libavcodec58
  libavdevice58 libavfilter7 libavformat58 libavresample4 libavutil56
  libbdplus0 libbluray2 libbs2b0 libchromaprint1 libcodec2-0.9 libdc1394-22
  libflite1 libgme0 libgsm1 libigdgmm11 liblilv-0-0 libmysofa1 libnorm1
  libopenal-data libopenal1 libopenmpt0 libpgm-5.2-0 libpostproc55
  librubberband2 libsdl2-2.0-0 libserd-0-0 libshine3 libsnappy1v5 libsndio7.0
  libsord-0-0 libsratom-0-0 libssh-gcrypt-4 libswresample3 libswscale5
  libva-drm2 libva-x11-2 libva2 libvdpau1 libvidstab1.1 libx264-155
  libx265-179 libxvidcore4 libzmq5 libzvbi-common libzvbi0 mesa-va-drivers
  mesa-vdpau-drivers va-driver-all vdpau-driver-all
Suggested packages:
  ffmpeg-doc i965-va-driver-shaders libbluray-bdj libportaudio2 serdi sndiod
  sordi libvdpau-va-gl1 nvidia-vdpau-driver nvidia-legacy-340xx-vdpau-driver
  nvidia-legacy-304xx-vdpau-driver
The following NEW packages will be installed:
  ffmpeg i965-va-driver intel-media-va-driver libaacs0 libaom0 libass9
  libavcodec58 libavdevice58 libavfilter7 libavformat58 libavresample4
  libavutil56 libbdplus0 libbluray2 libbs2b0 libchromaprint1 libcodec2-0.9
  libdc1394-22 libflite1 libgme0 libgsm1 libigdgmm11 liblilv-0-0 libmysofa1
  libnorm1 libopenal-data libopenal1 libopenmpt0 libpgm-5.2-0 libpostproc55
  librubberband2 libsdl2-2.0-0 libserd-0-0 libshine3 libsnappy1v5 libsndio7.0
  libsord-0-0 libsratom-0-0 libssh-gcrypt-4 libswresample3 libswscale5
  libva-drm2 libva-x11-2 libva2 libvdpau1 libvidstab1.1 libx264-155
  libx265-179 libxvidcore4 libzmq5 libzvbi-common libzvbi0 mesa-va-drivers
  mesa-vdpau-drivers va-driver-all vdpau-driver-all
0 upgraded, 56 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 44.3 MB of archives.
After this operation, 183 MB of additional disk space will be used.
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Setting up libxvidcore4:amd64 (2:1.3.7-1) ...
Setting up libsnappy1v5:amd64 (1.1.8-1build1) ...
Setting up rtl8814au-dkms (5.8.5.1) ...
Removing old rtl8814au-5.8.5.1 DKMS files...

Deleting module version: 5.8.5.1
completely from the DKMS tree.

Done.
Loading new rtl8814au-5.8.5.1 DKMS files...
Building for 5.4.0-58-generic
Building initial module for 5.4.0-58-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/rtl8814au-dkms.
0.crash'
Error! Bad return status for module build on kernel: 5.4.0-58-generic (x86_64)
Consult /var/lib/dkms/rtl8814au/5.8.5.1/build/make.log for more information.
dpkg: error processing package rtl8814au-dkms (--configure):
 installed rtl8814au-dkms package post-installation script subprocess returned e
rror exit status 10
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Setting up intel-media-va-driver:amd64 (20.1.1+dfsg1-1) ...
Setting up libaacs0:amd64 (0.9.0-2) ...
Setting up librubberband2:amd64 (1.8.2-1build1) ...
Setting up libsndio7.0:amd64 (1.5.0-3) ...
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Setting up libvidstab1.1:amd64 (1.1.0-2) ...
Setting up libflite1:amd64 (2.1-release-3) ...
Setting up libva-drm2:amd64 (2.7.0-2) ...
Setting up libvdpau1:amd64 (1.3-1ubuntu2) ...
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Setting up mesa-va-drivers:amd64 (20.0.8-0ubuntu1~20.04.1) ...
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Setting up libva-x11-2:amd64 (2.7.0-2) ...
Setting up libopenmpt0:amd64 (0.4.11-1build1) ...
Setting up libzvbi-common (0.2.35-17) ...
Setting up i965-va-driver:amd64 (2.4.0-0ubuntu1) ...
Setting up libpgm-5.2-0:amd64 (5.2.122~dfsg-3ubuntu1) ...
Setting up libserd-0-0:amd64 (0.30.2-1) ...
Setting up mesa-vdpau-drivers:amd64 (20.0.8-0ubuntu1~20.04.1) ...
Setting up libzvbi0:amd64 (0.2.35-17) ...
Setting up libzmq5:amd64 (4.3.2-2ubuntu1) ...
Setting up libopenal1:amd64 (1:1.19.1-1) ...
Setting up libavutil56:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up va-driver-all:amd64 (2.7.0-2) ...
Setting up libpostproc55:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up vdpau-driver-all:amd64 (1.3-1ubuntu2) ...
Setting up libsord-0-0:amd64 (0.16.4-1) ...
Setting up libsratom-0-0:amd64 (0.6.4-1) ...
Setting up libswscale5:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up liblilv-0-0:amd64 (0.24.6-1ubuntu0.1) ...
Setting up libswresample3:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up libavresample4:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up libavcodec58:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up libchromaprint1:amd64 (1.4.3-3build1) ...
Setting up libavformat58:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up libavfilter7:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up libavdevice58:amd64 (7:4.2.4-1ubuntu0.1) ...
Setting up ffmpeg (7:4.2.4-1ubuntu0.1) ...
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for libc-bin (2.31-0ubuntu9.1) ...
Errors were encountered while processing:
 rtl8814au-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)

What is is telling me with Bad return status for module build on kernel:...

Here is the log https://gist.github.com/nyck33/4c4a5121b3268f11b3add8a37caee5c7

Answer 1

sudo apt install git dkms
git clone https://github.com/aircrack-ng/rtl8814au.git
cd rtl8814au
sudo make dkms_install

Reboot