On Fri, 10 Jun 2005, Rob Foster wrote:

> found this about some tyan motherboard, which is not what we have in
> the blade but..
> 
> > One of my mail to the support:
> > But I try three things:
> > 1) redirect BIOS to serial port: OK
> > 2) redirect kernel to serial port: OK
> > 3) redirect both BIOS and kernel to serial port: problem.
> >
> > In the case 3) I get all the message from the BIOS, I can manage it,
> > but when the kernel boots, the kernel sends nothing to the serial port
> > if the serial port was already used by the BIOS.
> > So I suppose that the BIOS does not release the serial port, before
> > the kernel boots.
> > The answer from TYAN:
> > I used Red Hat 9 and was able to redirect both the BIOS and RH 9 at
> > the same
> > time. 
> 
> 
> is this true? how can I work around this?

Just for you I rebooted one of my OpenBSD RLX blades, hit F2 at the RAM
test.  Here is the screenshot of my serial console:

+------------------------------------------------------------------------------+
|               Console Redirection                  |   Item Specific Help    |
|----------------------------------------------------+-------------------------|
|                                                    |
|
|   Local Console:             [On]                  | Turn ON local console   |
|   Baud Rate                  [9600]                | redirection for video   |
|   Console Type               [VT100]               | output to local serial  |
|   Flow Control               [None]                | port.
|
|   Continue C.R. after POST:  [On]                  | Turn OFF to disable
|
|                                                    | this feature.
|
|   Remote Console Role:       [Client]              |
|
|      Remote Console:         [On]                  | WARNING:  Turn OFF
|
|                                                    | console redirection
|
|                                                    | prevents you from
|
|                                                    | viewing video output    |
|                                                    | for navigation during   |
|                                                    | boot process or BIOS    |
|                                                    | setup.
|
|                                                    |
|
|                                                    |
|
+------------------------------------------------------------------------------+
  F1   Help   ^v  Select Item   -/+    Change Values       F9   Setup Defaults
  Esc  Exit   <   Select Menu   Enter  Select > Sub-Menu   F10  Save and Exit


And I verified that I'm runnint a non-standard boot loader, notice the
"set ktty" variable.  However since you've set ever thing in boot.conf 
it should work. 

Using drive 0, partition 3.
Loading...
probing: pc0 com0 apm mem[618K 1022M a20=on]
disk: hd0+ hd1+*
>> OpenBSD/i386 BOOT 2.06
Sat Jun 11 22:57:55 2005

com0: 9600 baud
kernel console will be com0
boot> set
>> OpenBSD/i386 BOOT 2.06
addr     0x0
howto
device   hd0a
tty      pc0
ktty     com0
image    /obsd
timeout  6
boot> mmmmm

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