FreeBSD/riscv (generic) (rcons)
Jan 8 11:35:36 generic login: ROOT LOGIN (root) ON rcons
FreeBSD 14.0-CURRENT #0 main-n259905-231d75568f16: Sun Jan 1 07:57:08 UTC 2023 email@example.com:/usr/obj/usr/src/riscv.riscv64/sys/GENERIC
Welcome to FreeBSD!
That said, I’ve been thinking about trying to do something with PPP over the serial line to get a network because round trips moving SD card back and forth, reflashing and waiting for the root to load takes many minutes and makes driver development very tedious.
It should be possible; u-boot has the network set up and is presenting it through EFI to the loader. I haven’t tried it though, and won’t be for a while - I don’t really have my network set up for it right now and its a distraction I don’t have much interest in. If you try it I’ll be interested to know how it goes!