Re: how to jump into ddb console from a serial terminal ?

[Hugh Graham <hugh@openbsd.org>]

On Wed, Aug 01, 2001 at 11:30:22AM +0200, Thierry Deval wrote:
> Hello,
> 
> I've hooked up my OpenBSD ~current server to a serial connection to be 
> able to remotely see the boot sequence, and to have an other way to get 
> on it in case the network fails (it's not stable anymore, too old)
> 
> However, related to the 'db3 access hangs OpenBSD 2.9' thread, I'd like 
> to be able to invoke the ddb console from my serial connection. That 
> would really be easier for taking the trace (yeah, I'm lazy)
> 
Assuming this arch is i386, a line break should do it. Most com programs
(tip, for instance) will send one if you use the sequence "\n~#".

HTH

/Hugh

> Is there a way to emulate the Ctrl-Alt-Esc sequence on the serial 
> console, or maybe we can change the trap sequence somewhere to render it 
> compatible with a serial communication ?
> 
> Thanks,
> 
>    Thierry