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Possible Duplicate:
Installing Tiger on a Snow Leopard MacBook

I would like to be able to run OS X 10.3 for the purposes of software testing on a modern (x86) Mac. I'm aware of emulators such as SheepShaver which do this kind of thing for "Classic" Mac OS (up to System 9.0.4), but I can't seem to find anything which would allow me to run a VM for older versions of OS X ?

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marked as duplicate by BinaryMisfit Oct 13 '10 at 9:29

This question was marked as an exact duplicate of an existing question.

Not really a duplicate of the Tiger on MacBook question - this question is about running OS X 10.3 (Panther), which is a PowerPC-only OS, under emulation on a modern OS X x86 system. – Paul R Oct 13 '10 at 10:04
The answer however applies in both cases. The second answer already mentions that the only possible way is using Parallels which only supports Leopard and higher. – BinaryMisfit Oct 13 '10 at 12:04

There is no PowerPC emulator for Intel architectures. If your target platform is a bit more recent, see here.

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Thanks - although that question is somewhat similar, none of the answers actually provides a solution. – Paul R Oct 13 '10 at 8:46
There is no solution. Old platforms would need to be emulated (which is insanely slow, I tried PearPC about 7 years ago), more recent ones, starting with 10.4 Intel, could be virtualized, but neither VMware nor Parallels allow it, since Apple's license doesn't allow it. There was a build for VirtualBox that could do it, but it didn't work on my Macs at all; and I'm not sure if they still do it. – Daniel Beck Oct 13 '10 at 8:53
Thanks - I was hoping that there might be a solution which leveraged the Rosetta PowerPC emulation built into Mac OS X for x86 (which is quite fast, incidentally, as you probably know). But evidently not - I guess I'll just have to keep my old G5 Macs running indefinitely. – Paul R Oct 13 '10 at 9:14
@Paul: You use it for software testing, so emulating and tricking are clearly inferior to the real thing. Your users still use 10.3 and earlier? After five years? – Daniel Beck Oct 13 '10 at 9:34
yes, it's for build testing and sometimes for actual testing - we have high reliability legacy systems at customer sites still running 10.3 which can not be upgraded. – Paul R Oct 13 '10 at 10:02

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