after running the installer on a PowerMac G5 no root filesystem found

Michael Tuexen Michael.Tuexen at
Wed Nov 14 17:15:15 UTC 2018

> On 14. Nov 2018, at 18:02, Justin Hibbits <chmeeedalf at> wrote:
> On Wed, 14 Nov 2018 11:52:45 -0500
> Dennis Clarke <dclarke at> wrote:
>> <snip>
>>>>> At first boot I get a load of text and then a strange prompt that
>>>>> seems to be asking where is the root filesystem? It also lists
>>>>> all the various filesystems found. I tried to enter
>>>>> ufs:/dev/adas2 and similar things but this gets me nothing but an
>>>>> unrecognized filesystem message.
>>>>> So .. something obvious?  
>>>> Can you try setting the variable kern.smp.disabled to 1 at the
>>>> loader prompt?
>>>> If that helps, you can add
>>>> kern.smp.disabled=1
>>>> to /boot/leader.conf  
>>> I meant /boot/loader.conf.  
>> To do that at all I would need to be able to get to the root
>> filesystem.
> You can do it at the loader.
> set kern.smp.disabled=1
> boot
>>>> I had all sorts of problems until I disabled SMP on my G5
>>>> PowerMacs. Without SMP they are running very stable.  
>> So FreeBSD can not run on ye old IBM PPC970 units with multiple cores
>> or multiple sockets?  That sounds like a critical bug.
> It could until recently, due to my fault.  I can revert the change that
> caused it, but haven't yet, because I don't understand why it's causing
I think I tried a kernel with you change reverted. It didn't fix the
problem. I can try again, but at that time the problem was not only
related to the one commit.

Best regards
> the problem.  And I'm pretty confident it's not causing the mountroot
> issue (though, I was pretty confident it wouldn't cause any problem
> anyway, but that turned out to be false confidence).
>> Dennis Clarke
> Can you somehow get a dmesg dump to post to the list?  I'm very curious
> to see what could be causing the problem you're seeing.
> - Justin
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