Netbds10.0 on Rock64 not booting

[KC9UDX]

Just a thought, maybe I forget and you already mentioned; but are you trying to boot NetBSD from SD or eMMC?

I ask because on the Pinebook Pro, if you have Manjaru on the eMMC, with the U-Boot that comes with Manjaru, you cannot boot NetBSD (and a lot of other things) from SD card. This is a fault with the U-Boot that comes with Manjaru, and probably other Linuces. The easiest way around this is to disable the eMMC (and then re-enable it as soon as NetBSD starts to boot).