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

Michael Tuexen Michael.Tuexen at
Wed Nov 14 08:12:03 UTC 2018

> On 14. Nov 2018, at 09:10, Michael Tuexen <Michael.Tuexen at> wrote:
>> On 13. Nov 2018, at 23:03, Dennis Clarke <dclarke at> wrote:
>> Not sure if this is a bug in the installer or what but I can tell you
>> that the installer seems to do what it says it will do.  I boot a G5
>> with the latest 12.0b4 installer dvd and go through the usual motions
>> wherein I select a whole disk auto ufs install and allow the installer
>> to do whatever magic it does for an Apple type partition.  Every other
>> type of partition results in a popup message that simply says this
>> platform can not support or boot or grok this partition. So I go with
>> the Apple type. Nothing else fancy here.
>> 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.
> I had all sorts of problems until I disabled SMP on my G5 PowerMacs.
> Without SMP they are running very stable.
> Best regards
> Michael
>> Dennis
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