Hi Sylvain In short: yes, there’s a workaround. Treat U-Boot as part of your install media. Put a known-good mainline/EFI-capable U-Boot for your exact RK3399 board on the SD (or SPI once proven), and boot the OpenBSD miniroot from that. Don’t depend on whatever ancient vendor U-Boot/firmware happens to be on the board.
Regards, Kihaguru Njenga Gathura On Sun, 21 Dec 2025, 22:38 Sylvain Saboua, <[email protected]> wrote: > Even though I have already two “bricked” models of this > SoC, I am willing to make a third attempt. > > By the time I hade purchased my second card, if I remember > correctly, the u-boot version on the openbsd miniroot was > not compatible (bootable) with the older version of the > firmware on the card. > > Hence my question : supposed this problem will present again, > is there a workaround to install (or upgrade to) openbsd's > latest version on a freshly purchased Firefly RK3399 ? > Maybe there is a firmware I can update on the card that will be > compatible with the current openbsd version's u-boot ? > Or maybe I should use a different u-boot on the minorootXX.img ? > > Thank you > -- > Sylvain Saboua > looking for a PDP-11 > >
