On 2021-05-11, Paul W. Rankin wrote:
> Hello,
>
> I am trying to install OpenBSD on a Raspberry Pi 4B without the
> assistance of the serial console. The Pi firmware is set to boot from
> USB. I have arm64 miniroot69 on a USB and the system boots; I see the
> "BOOT>" prompt, but my USB keyboard does not appear to be recognised at
> this point in boot, so I cannot interrupt and set tty to fb0. The boot
> then proceeds to the serial console (i.e. blank screen).
>
> The thought occurred that it may be possible to change boot.conf in the
> miniroot69 image to set tty to fb0 but so far my attempts have been
> unsuccessful. I have tried...
>
> ...on my macOS system, I tried many variations of the following without
> success:
>
> # qemu-system-aarch64 -machine raspi3 -hda /dev/disk2
> # qemu-system-aarch64 -machine virt -hda /dev/disk2
> # qemu-system-aarch64 -machine raspi3 -drive
> file=miniroot69.img,format=raw
> # qemu-system-aarch64 -machine virt -drive file=/dev/disk2,format=raw
>
> The qemu system just presents a blank screen. Nothing on serial or
> parallel screens.
>
> ...on my OpenBSD server, I tried mounting the miniroot69.img and
> altering boot.conf directly:
>
> # vnconfig vnd0 miniroot69.img
> # mount /dev/vnd0a /mnt
>
> But this just presents:
>
> # ls -1
> bsd
> bsd.rd
>
> Does anyone have any suggestion of how I might achieve editing boot.conf
> on the miniroot69 image or otherwise how to boot the Raspberry Pi 4B
> into fb0?
That would go on the booted disk, not inside the ramdisk kernel, so
cd /mnt
mkdir etc
echo set tty fb0 > etc/boot.conf
Pretty sure I tested that scenario and it worked without boot.conf
though I'm not sure if it was with the pftf firmware or U-Boot.
