Hello,
I have used NanoPi M4v2 with "NVMe SSD adapter" (Officially sold by the FriendlyElec).
NVMe SSD is detected when I installed ubuntu based kernel 4.4. (FriendlyCore 18.04 or Armbian Bionic desktop based kernal 4.4.y)
But When I installed armbian based kernel 5.x, NVMe SSD is not detected.
Anyone can advise?