strange, it should work normal.

just write the image with dd and login as root@openwrt.lan at port 22

Sure, nanopi-r2s is available for download at https://downloads.openwrt.org/snapshots ... hip/armv8/

Building on RPi4 would be super slow. I suggest you use GitHub actions with ssh or CircleCi with SSH. Meanwhile, you can also use: https://github.com/jayanta525/build-openwrt-nanopi-r1 this NanoPi R1 build by me. It should work fine with the R1S-H3. Once you confirm it boots, you will need to compil...

https://github.com/jayanta525/openwrt-n ... -r1s-h3-h5

Here is the source code for openwrt with NanoPi R1S-H3 added.
Follow the normal procedure of compiling OpenWrt.
You can also use Github Actions to compile builds:

You can change it by modifying the DTS file. and recompile the OS again.

Hello, i have ported OpenWrt for the NanoPi R2S. Networking perfomance is better than FriendlyWrt and openssl benchmarks are too good. https://github.com/jayanta525/openwrt-nanopi-r2s OpenSSL 1.1.1g 21 Apr 2020 built on: Wed May 20 21:35:46 2020 U,64) rc4(char) des(int) aes(partial) idea(int) blowfi...