Hi Arti,
 
Yes, this page contains instruction from FrienlyArm on how to create flashing sd-card to create the image on emmc:
http://wiki.friendlyarm.com/wiki/index.php/NanoPi_NEO4
I’ve read it and that’s actually how I flash emmc now. But I did not find a way to customize boot script to integrate RAUC.
 
Best regards,
Mikhail
  
>Среда, 18 марта 2020, 21:01 +03:00 от Arti Zirk <arti.zirk@gmail.com>:
> 
>On N, 2020-03-12 at 15:53 +0300, Mikhail wrote:
>> The system (with Ubuntu 18) is installed on EMMC and it uses rockchip
>> u-boot as bootloader Have you looked into how Armbian has done support for this board?
>https://www.armbian.com/nanopi-neo4/
>  
 
 
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