Hi, I have troubled to set an u-boot environment variable of NanopiM4V2.
I have tried changing the rootdelay parameter by making /etc/fw_env.config file.
However, I don't know how to get the number I have to write in it.
NanopiM4V2 is booted from microSD card. ("cat /proc/mtd" is none)
If anyone know how to set the /etc/fw_env.config file with booting from microSD card??