Question about xserve G5

[Javi Hotmail]

I'm trying to boot the XServe with serial console, and I get to the
kernel, but immediate after I start getting garbage on the screen (the
bauds change to 9600).

My issue is that after I reach a point where I have to type something I
have no input whatsoever, and I suspect it might be because of this
sudden change in bauds.

I'm trying to set kernel arguments to fix the bauds to 57600, but I just
can't find the correct one.

Does anybody know how to do it without recompiling the kernel?


Kind Regards,

Javi.


On 07/11/2020 13:49, Jason Bacon wrote:
> On 11/6/20 9:58 AM, Brandon Bergren wrote:
>> On Fri, Nov 6, 2020, at 2:59 AM, Javi Hotmail wrote:
>>  
>>> Internally it was complaining about not being able to read the I2C  (I
>>> assume from the PMU); But anyways it seems to be more or less working
>>> now, I'll switch back to FBSD and see how it goes.
>>>
>> OK, yeah, lack of I2C communication would definitely explain the fans
>> suddenly ramping up to maximum, since it's the obvious failsafe to
>> use hardware wise when communication gets lost and the thermal
>> management system is no longer aware of its temperature. Better to
>> err on the side of noise than risk overheating anything.
>>
> I see I2C errors on my PowerMac G5 as well, but they don't always
> correlate with the fans ramping up.
>