TL;DR: Please drop a message here when your⁽⁰⁾ 9.99.x on a Pi4 survived one or more updates these days.
The epic version...
I had/have that flavour of NetBSD-current on two Pi4s. In the beginning on µSD cards, then I reinstalled it on external USB3 SSDs. It ran fine for months and over several self-build.sh
-ed updates until an update killed⁽¹⁾ both SSDs and I haven't looked at it since then. I have kept the µSD cards from before that incident to somewhen re-NetBSD-ing⁽²⁾ the now idling SSDs.
I hope these problems are fixed now or soon, but with a long to do list, I haven't retried it yet. Getting green lights about 9.99.x/arm64 surviving updates now, would push retrying it lots of positions upwards on my growing (™dark energy inside™) to do list.
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0: This 'you' shall not mean only the thread owner, please read it as 'you, the reader, with 9.99.x on a Pi4'.
1 : One SSD was 'killed' by sysupgrade
with downloaded kernel and sets, the other one showed the same problem after sysupgrade
from a self-build.sh
-ed release set of the same date. Probably only the boot process got screwed, and RasPIan had some problems too around those days, so maybe that was related, and not even purely a NetBSD problem?
2: After the SSDs were screwed up, I tried Pi4-Devuan3, but that was meant as interlude only.
3⁽⁴⁾: What about starting a wiki page to concentrate notes about NetBSD on Pi stuff in one place?
4: Yip! Footnote 3 has no mention in the main text! 😇