Wednesday, February 17, 2021

Re: PC Engines APU2 boot problem

On Wed, Feb 17, 2021 at 12:08:52PM +0100, Raimo Niskanen wrote:
> Hello misc!
>
> I have problem booting an APU2 from SD card and USB stick.
> It boots fine from the mSATA disk where I have the OpenBSD installation
> that I have upgraded several times using sysupgrade(8).
>
> I have tried to write install67.fs and install68.img to an SD card and to
> an USB stick from a Linux machine using e.g
> dd if=install67.fs of=/dev/sdc bs=1M
>
> On the APU:s serial console, I press [F10] to get a boot prompt, and then
> select the SD card or the USB stick. The kernel is loaded and the last
> printout is "Entry point: 0xffff..." something. The next line
> [ELF ... whatnot] does not come. After a while the APU resets and boots
> again, or sometimes hangs.

Before loading a kernel the serial console needs to be enabled with:

stty com0 115200
set tty com0

On an installed system /etc/boot.conf is usually set up to do this
automatically but manual setup is still required when booting from
other media.

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