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Mac-on-Linux is a linux/ppc program which makes it possible to run Mac OS in parallel with Linux.

MOL is primarily intended to be used by those who run linux/ppc as their main operating system but still want to be able to run that occasional Mac OS application. Other possible applications include:

  • development
  • hardware simulation
  • server applications
  • compatibility testing
  • No CPU emulation
  • very fast!
  • No ROM image needed
  • Complete MMU virtualization
  • Idle sleep (8.6 or later)
  • Very compatible
  • Multi-session support
  • 603, more...

What's New

  • Added nvram.x installation
  • Fix bootstrap check
  • Fix dmdma.c strict aliasing warning
  • Make sure that log and lock dirs are created
  • Integrated BootX with the build system
  • Added check for zlib
  • Fixed test invocations (== is invalid)
  • Fixed VT Switching
  • Removed Sheep from defconfig
  • Fixed Ubuntu -fno-stack-protector bug
  • Removed duplicate nvram, fix doesn't more...


  • A PowerPC CPU (603, 604, G3 or G4)
  • Linux/ppc with a 2.4 or 2.6 kernel
  • Mac OS 8.6* or later
  • Mac OS X 10.1 or later
* MOL can run MacOS 7.5.2 and later in "oldworld" mode. However, this requires an image of a supported boot ROM.

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Mac-on-Linux User Discussion

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JoseJX Member IconComment+0

Mac-On-Linux is a completely different program than PearPC and predates it by many years (MOL has been around since at least 1999). Mac-On-Linux actually virtualizes the CPU instead of emulating it like PearPC. While this limits the portability of the program (it only runs on PowerPC processors) it more than makes up for that in speed since many CPU intensive applications run at near native speed.

Mac-On-Mac unfortunately has been abandoned, but the current developer of MOL is currently merging those patches back into the main source tree.

Reply1 reply

Thank you for that information José!

HubmaN Member IconComment+0

If you ask me, someone should take a closer look at this. The speed seems very similar to PearPC (an open-source solution). If you ask me, this is a ripoff of PearPC. Maybe someone could analyse the source, I suppose?

Reply1 reply

I believe you have that backward.

Vitalis Member IconComment+5

yes, however it's only at version 0.2, hasn't been updated since june 16th, 2005, and isn't compatible with Tiger!
real pity :(

Reply2 replies

Umm no, it is version, not 0.2!


Oh I get it now, you are replying to my reply and speaking of Mac-on-Mac, not Mac-on-Linux! I see!

nstanosheck Member IconComment+9

You want Mac-on-Mac Edward, as it does exactly what you ask. It is listed here at MacUpdate too!

Reply0 replies
Edward Bilderback Member IconComment+0
Edward Bilderback

I note that the program is for those who run Linix/ppc, but want to use the Mac OSX infrequently.

If you would turn that idea around: Mac OSX mainly/Linux infrequently, I believe you'd have a winner.

Since I am a Mac person, I have no use for your program. However, I do hope you'll program a version for Mac people.

I wish you good luck; it appears that you have a winner of an idea for Linux users.


Reply2 replies
Peter da Silva

Why would you want to run Linux under Mac OS X? Any portable Linux application will run natively on OS X. The few that don't tend to require driver support that would need to be emulated... it would be easier to write an OS X driver instead.


You want Mac-on-Mac Edward, as it does exactly what you ask. It is listed here at MacUpdate too! (Version

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Current Version (0.x)


Downloads 8,733
Version Downloads 5,122
License Free
Date 09 Feb 2007
Platform OS Classic / OS X / PPC 32
Price Free