TP-Link AC600 Archer T2U NanoをUbuntu 18.04で使う

環境

$ uname -a
Linux h270m 5.4.0-58-generic #64~18.04.1-Ubuntu SMP Wed Dec 9 17:11:11 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.4 LTS
Release:    18.04
Codename:   bionic

TP-Link WiFi 無線LAN 子機 Archer T2U Nano

TP-Link WiFi 無線LAN 子機 AC600 433Mbps + 200Mbps Windows/Mac OS 対応ナノ設計 wi-fi子機デュアルバンド無線lan アダプタ 3年保証 Archer T2U Nanoが無線LAN子機ストアでいつでもお買い得。当日お急ぎ便対象商品は、当日お届け可能です。アマゾン配送商品は、通常配送無料（一部除く）。

amzn.to

最終的にうまくいった方法

GitHub - aircrack-ng/rtl8812au: RTL8812AU/21AU and RTL8814AU driver with monitor mode and frame injection

RTL8812AU/21AU and RTL8814AU driver with monitor mode and frame injection - aircrack-ng/rtl8812au

GitHub

上記のコミット5521bf9（2020年12月27日時点での最新版）

git clone https://github.com/aircrack-ng/rtl8812au.git
cd rtl8812au
make
sudo make install

試したこと（うまくいかなかった方法）

GitHub - jeremyb31/rtl8812au-1: RTL8812AU/21AU and RTL8814AU driver with monitor mode and frame injection

RTL8812AU/21AU and RTL8814AU driver with monitor mode and frame injection - jeremyb31/rtl8812au-1

GitHub

$ sudo ./dkms-install.sh
About to run dkms install steps...
Error! DKMS tree already contains: rtl8812au-5.3.4
You cannot add the same module/version combo more than once.

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area...
'make' -j4 KVER=5.4.0-58-generic KSRC=/lib/modules/5.4.0-58-generic/build....(bad exit status: 2)
ERROR (dkms apport): binary package for rtl8812au: 5.3.4 not found
Error! Bad return status for module build on kernel: 5.4.0-58-generic (x86_64)
Consult /var/lib/dkms/rtl8812au/5.3.4/build/make.log for more information.

Kernel preparation unnecessary for this kernel.  Skipping...
https://github.com/aircrack-ng/rtl8812au
Building module:
cleaning build area...
'make' -j4 KVER=5.4.0-58-generic KSRC=/lib/modules/5.4.0-58-generic/build....(bad exit status: 2)
ERROR (dkms apport): binary package for rtl8812au: 5.3.4 not found
Error! Bad return status for module build on kernel: 5.4.0-58-generic (x86_64)
Consult /var/lib/dkms/rtl8812au/5.3.4/build/make.log for more information.
Finished running dkms install steps.