Hi David,
Well, yes, Apple have a clear financial incentive to try to, ahem, "encourage"
people to upgrade their hardware.
Also, each time a new Mac model comes out, it is usually incapable of running
*any* version of the OS that predates that hardware. For instance, I haven't
looked into it, but if history is any guide, the new iMac models released Oct.
20, 2009 most likely do not boot under any OS older than OS X 10.6.2 -- they
probably can't be booted from the OS X 10.6.0 retail DVD, and definitely cannot
run any flavor of OS X 10.5 or earlier.
I did discover PearPC, a PPC emulator that is capable of running OS X 10.3 as a
client OS ("with some caveats").
http://pearpc.sourceforge.net/about.html
Cheers,
- DJA
-----
WEB: http://www.secretsocietymusic.org
On 15 Mar 2010, at 6:20 PM, David W. Fenton wrote:
> On 15 Mar 2010 at 18:03, Darcy James Argue wrote:
>
>> It's possible, but unsupported and not for the faint of heart. The process
>> is essentially the same as running a "Hackintosh" -- i.e., running Mac OS
>> X on a PC:
>>
>> http://wiki.osx86project.org/wiki/index.php/Vmware_how_to
>
> I wasn't really thinking about using a 3rd-party VM -- I was assuming
> Apple would have their own emulator. Obviously, I wasn't really
> thinking clearly on that.
>
> Windows can pretty easily support VMs for earlier versions because
> it's the same family of chips going back to the early 90s (when the
> Pentium was introduced), and those chips always carried compatibility
> modes for software compiled for earlier Intel chips, so virtualizing
> a Pentium automatically gets you virtualization of 386 and 286 and
> even 8086.
>
>> It is, ironically, much easier to run Windows on a Mac using
>> virtualization software than it is to run earlier Mac OS's on later-model
>> Macs. (The transition to Intel hardware makes it difficult to run a
>> PPC-only OS like 10.3.x on an Intel-based Mac.)
>
> That's only because nobody is apparently virtualizing the earlier
> chips. I guess there's no demand for it, and that means that
> conservative upgraders like Andrew are forced to replace their
> hardware and bite the bullet and get up-to-date software.
>
> Too bad. I fully understand and support the motivation behind those
> who don't want to change.
>
> --
> David W. Fenton http://dfenton.com
> David Fenton Associates http://dfenton.com/DFA/
>
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