no serial console for ttyd0 HP Blade

[Marian Hettwer]

Hi Jeremy,

On Wed, 2 Jul 2008 00:27:41 -0700, Jeremy Chadwick <koitsu at FreeBSD.org>
wrote:
> On Wed, Jul 02, 2008 at 12:16:41AM -0700, Jo Rhett wrote:
>> I'll bet you that sio is deciding that com1 or not, it's sio1 (not sio0)
>> which can be fixed with the changes I mention below.
>>
>> On Jul 1, 2008, at 11:38 PM, Ulf Zimmermann wrote:
>>> I take that back, on blades the virtual serial is on COM1.
> 
> I agree with Joe.  Chances are it may be "COM1" in the BIOS, but it may
> be actually wired to the equivalent of COM2.  Or, the blade manufacturer
> set the ACPI table to point 0x3f8/4 to COM2 and 0x2f8/3 to COM1.
> 
Ack.

> I've seen this on one Supermicro board (front panel COM port is COM2,
> rear is COM1; but no mention of what's what in the manual.  You actually
> have to experiment to find out.)
>
I'll do so.
However, I do wonder why the serial console works in boot loader and kernel
bootup stage?
Any explanation? :)

regards,
Marian