BeagleBone Black Multiple Serial Ports?

[Jim Rosenberg]

I have need of a small low-cost SBC to manage an external device via 
RS-232. Raspberry Pi would probably work fine, but I really want to run 
OpenBSD if I can. BeagleBone Black seems like a really nifty board. It has 
multiple UARTs, so using UART0 for console and UART1 for the device I'm 
managing *should* work fine. But, I'm not seeing any sample dmesg listings 
with anything in the way of serial ports but com0 showing up. I've never 
tried running OpenBSD without any console at all -- I don't know if there's 
a way to do this and get it to boot, but it doesn't seem like a very good 
idea. Is there a way to get com1 to show up? Something involving "boot 
mode" perhaps?

I don't have one of these little puppies yet, and have only been over the 
board manual casually. If anybody's gotten a second serial port to work on 
OpenBSD, I'd love to hear about how to do this.

I've built OpenBSD boxes to use as firewalls from Soekris and Alix boards; 
the BeagleBone Black board looks pretty nifty, but I don't have any hands 
on with the OpenBSD Arm port. I don't really want to go to the expense of 
something like an Alix.

-Thanks, Jim