[ydl-gen] How to have YDL and Leopard coexist

[Sterling Garwood]

thanks ... I am going to move back to 10.4.11 Server - I think you are  
probably right about the Leopard changes ... BTW I have done some  
benchmarking of Leopard, Tiger, and YDL. Tiger was slow in context  
switches but Leopard is even slower!!!

On Jun 13, 2008, at 1:38 PM, NeoAmsterdam wrote:

> On 2008/Jun/13, at 08:04, Sterling Garwood wrote:
>
>> A 'Mirrored Drive Door' mac refers to a model of Powermac tower  
>> with a
>> shiny front bezel. It was available with 1 or 2 processors at speeds
>> IIRC from 1.0 to 1.25 GHz. Even Apple refers to them as MDD macs.
>
>> A bit more info-
>> the partitions are Apple_UNIX_SVR2 but Leopard still complains via a
>> dialog box at boot time about an
>> unknown disk partition - could it be the swap partition for YDL???
>
> I don't think so - The swap partition would also be type
> ``Apple_UNIX_SVR2`` and so you would have seen *two* ``Erase-Eject-
> Ignore`` dialogs.
>
>> Is there no one out there who runs YDL 6 and MacOSX in my
>> configuration? The Suse people have figured out how to coexist quite
>> nicely in this configuration but their release has some other serious
>> issues I've hit.
>
> I suspect that the problem is Leopard - or, at least, a poorly-
> documented change in the disk management system from X.4 to X.5.
>
> I've been able to put Classic, OS Xs 10.2.8-10.4.11, Darwins 7 & 8,
> *and* Yellow Dogs 3.0.1-6 on the same hard disk (on their own
> partitions, of course) without any boot or partition problems.  Even
> now I have Classic, X.4.11, and YDL 6 purring cooperatively on my
> TiBook.  I removed Leopard shortly after installing on my TiBook* so
> I've never had any experience with Leopard and YDL on the same disk.
>
> If I had to guess, I'd suggest that Leopard now expects all
> Apple_UNIX_SVR2 partitions to be UFS formatted and to have ``bzb
> flags`` set (OS X pdisk; YDL doesn't set any ``bzb``s AFAICT).  So
> when Leopard discovers that the partition is unintelligible (since
> there's inexcusably *still* no ext2/ext3 support), it throws up the
> ``Erase-Eject-Ignore`` dialog.
>
>
> ______    ______
> \_(_)_\  /_(_)_/
>
>
> (*) Two major reasons why: (1) X11 was tinkered with to the point
> that I could not install (let alone run) Kile, Gimp, or ImageMagick.
> (2) Leopard was so slow that a IIcx running A/UX on 16MB RAM is a
> comparative speed demon.
>
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