OS-X

[Bradley Hook]

The Intel Macs didn't originally ship with any form of BIOS, and the
newer ones only have a BIOS compatibility module in the EFI system. The
only reason they added the BIOS mod was so geeks could dual-boot OSX
with more traditional x86 OSes.

The Intel version of OSX wont boot on anything but specialized EFI
systems. People have done hacking to both OSX and EFI implementations to
get OSX running on non-standard hardware. At least one fellow managed to
get OSX to run mostly stable on a hacked Dell laptop. As far as I know,
there are no working EFI implementations that aren't based on an Intel
chip (Intel did make EFI after all), and so the system must be Intel
based to run OSX, regardless of if its Mac hardware or not.

Not sure what exactly this has to do with the original post, but then
again I have yet to determine what the goal of the original post was...

~Bradley Hook

RtX wrote:
> They hacked the Mac OS X to run on Intel hardware. I'm not talking about
> them changing to an Intel architecture. While I'm not sure of the
> particulars, I heard that it's only a few minor code adjustments to get the
> OS to run on Intel hardware. If I remember right, it's a BIOS checking
> thing. If it's not the Mac BIOS, it won't install or run?
> 
> On 5/16/07, Jonathan Hutchins <hutchins at tarcanfel.org> wrote:
>>
>> For a long time, I've been under the impression, largely from friends who
>> have
>> been running Macintoshes for ages, that OS-X was based on one of the
>> three
>> BSD forks - that essentially it was a *BSD with an Apple window
>> manager/desktop environment, and with the kernel (and other programs)
>> locked
>> to the Trusted Program Module (TPM).
>>
>> Comments from some of you lately led me to do some research.  It appears
>> that,
>> at least on the internet, current documentation agrees that OS-X is based
>> on
>> Openstep, which evolved from NeXTSTEP, which was derived from 4.4 BSD
>> (pre-fork?) and the Mach OS.
>>
>> It's funny how knowledge like this can evolve on the web.  What gets
>> collated,
>> analyzed, and archived becomes the truth.  What was known to be true at
>> the
>> time gets forgotten.   Mode Emulators become
>> Modulator/Demodulators.  Other
>> acronyms drift.
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> 
> 
> 
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