Re: PCEngines APU4B4 doesn't boot AMD64 when PXE is activated in the bios

This sounds exactly like what happens when you don't do this at the
boot> prompt:

stty com0 115220
set tty com0

Arnaud BRAND [arnaud.brand--obsd@tib.cc] wrote:
> Good evening list,
>
> I recently bought a PCEngine APU4B4 https://www.pcengines.ch/apu4b4.htm
> AMD GX-412TC, 1 GHz quad Jaguar core / 64 bit and AES-NI / 4GB RAM
>
> I had absolutely no problem booting and installing i386 OpenBSD 6.3 and
> snapshots over PXE.
> With the AMD64 version, it wouldn't boot, it crashed immeditely after the
> "entry point at 0x1000158" line and rebooted.
>
> I found Neels' page (http://hofmeyr.de/OpenBSD%20on%20APU4/, BTW thanks
> Neels) who had no problem installing AMD64 from USB.
> So I tried that, both with 6.3 and snapshot, but it ended the same.
> To be precise, the "8" at the end of the "entry point at" line never shows
> up.
> The reboot/reset occurs after the 5 character.
>
> I was beginning to think that my APU was broken, but decided to try again,
> this time disabling the PXE capability in the bios.
> It worked immediately (like usual with OpenBSD).
>
> So, long story short, AMD64 kernels won't boot on APU4B4 when PXE boot is
> enabled in the BIOS.
>
> I don't know if there's anything to fix in OpenBSD as the embedded iPXE
> seems a bit buggy.
> I reckon this might be the cause of the problem.
>
> For people who experience difficulties wiht PXE booting (i386), try the
> following :
> - break out to iPXE shell
> - run "dhcp" until iPXE picks up an address
> - and then resume PXE booting process by typing "autoboot"
>
>
> Arnaud