My Nanopi M4 arrived last week and I've been trying to install OMV with OMV_4_NanoPi_M4.img.xz ever since. I am using the SanDisc 16GB micro-sd that came with it using etcher.io (I also tried dd and another 32GB card), but while it is installing OMV I can't see anything on the screen I attched via HDMI. The red led is on and the green led is blinking twice repeatedly until it stops after a few minutes.
I don't know if the headless installation was successful as I can't find an IP address for the M4. Connecting via ethernet and using IP ADDR.
Lubuntu desktop 16.04 for RK3399 works like a charm, however.
Any ideas what I can do to make it communicate with the HDMI screen when installing?
Thank you so much in advance,