*  *    * * *   root    /usr/local/bin/addcountry /etc/wpa_supplicant/wpa_supplicant.conf
root@raspberrypi:~# cat /usr/local/bin/addcountry
#!/bin/bash

if ! grep -q "^country=" $1; then
	echo Adding
	sed -i -e '2a\country=FR' $1
fi

apt install -y git build-essential linux-headers-rpi raspberrypi-kernel-headers bc   kbuild linux-kbuild-4.18 console-data
git clone https://github.com/whitebatman2/rtl8821CU.git
cd rtl8821CU
cat README.md
## Raspberry Pi
To build this driver on Raspberry Pi you need to set correct platform in Makefile.
Change
```
CONFIG_PLATFORM_I386_PC = y
CONFIG_PLATFORM_ARM_RPI = n
CONFIG_PLATFORM_ARM_RPI3 = n
```
to
```
CONFIG_PLATFORM_I386_PC = n
CONFIG_PLATFORM_ARM_RPI = y
CONFIG_PLATFORM_ARM_RPI3 = n
```
For the Raspberry Pi 3 you need to change it to
```
CONFIG_PLATFORM_I386_PC = n
CONFIG_PLATFORM_ARM_RPI = n
CONFIG_PLATFORM_ARM_RPI3 = y
```
vi Makefile
make -j4 ARCH=arm
make install



wget -q https://git.io/voEUQ -O /tmp/raspap && bash /tmp/raspap

root@adlp-desk00:/media/adlp/rootfs/root# cat /media/adlp/boot/cmdline.txt 
console=serial0,115200 console=tty1 root=PARTUUID=6c586e13-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait net.ifnames=0 biosdevname=0
root@adlp-desk00:/media/adlp/rootfs/etc# cat ./systemd/network/*-persistent-net.link
[Match]
MACAddress=b8:27:eb:5c:e4:60

[Link]
Name=eth0
[Match]
MACAddress=b8:27:eb:09:b1:35

[Link]
Name=wlan0
[Match]
MACAddress=00:e0:4c:29:5f:50

[Link]
Name=wlan1