hello.

On Sat, Jun 13, 2026 at 12:20:18AM +0000, Lloyd wrote:
> Does OpenBSD support dual-console on amd64? E.g. where kernel boot messages
> are sent to both the VGA and serial console simultaneously?

this exact topic was discussed a few months back, see here:

https://marc.info/?t=177419088800001&r=1

> Under Linux this is possible by passing multiple console= arguments to the
> kernel at boot time.

I agree, it would be nice to have both.

Also, on my uefi amd64 if I simply set tty com0 (without changing anything else)
the kernel no longer boots. I can't imagine how to debug this.

best regards,
peter

> As far as I know this is not currently possible on OpenBSD (without builtin
> BIOS support for console-redirection), it's an either-or choice at boot,
> but maybe someone knows of a secret method.
> 
> Regards
> Lloyd

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