nickngsr

I finally managed to get the official buster desktop image for the nanopi-m4 fully working on the version 2 of this board too.
 
Basically, I extracted the working bootloader from the Armbian_5.99.191102_Rockpi-4b_Debian_buster_dev_5.3.0 image (which boots, but doesn't works well on the nanopi-m4 v2) and I burnt it to the https://dl.armbian.com/nanopim4/Debian_buster_default_desktop.7z image.
 
This morning I did some initial tests and it seems that everything is working well.
 
I have prepared a patched image you can try. At the moment, I've tested it only with an SD card, but I guess It'll work on the emmc too.
Download it from https://drive.google.com/open?id=1LaJIywiZnZUkLDZ9HkWrRtc0PyfiYGOL
 
You can also apply the patch by yourself:
 
1) download buster desktop image for nanoPi M4 (version 1) from Armbian's web site https://dl.armbian.com/nanopim4/Debian_buster_default_desktop.7z
2) extract and burn it to an SD card
3) apply the patch I have shared at the link above using the following command, changing sdX with the correct device:
sudo dd if=8M_after64ibs_uboot_working_rockpi4image_on_nanopim4v2.dd of=/dev/sdX seek=64  
Let me know if it works for you too.
 

I had to apply the patch from pask on top of the emmc after using "nand-sata-install" to get it to boot, even after already applying it to the SD, I can only assume the bootloader it copies to the emmc is the unpatched variant.
 
After doing so it happily boots from emmc using nvme as root.
 
Using the minimal buster (4.4) build for the M4 with pask's patch everything seems to work as it should (wifi etc.)

Installer always use u-boot from package. If you haven't update that .... works as expected.