Darwin（ダーウィン）は、アップルが開発するUnix系のPOSIX準拠オペレーティングシステム (OS) である。 技術的にはNEXTSTEPからOPENSTEPに続く流れを汲み、Mach 3.0+BSDをベースとし、一部の機能は他のBSD系OSからも取り入れている。 DarwinはmacOSやiOS、さらにはwatchOSとtvOSの基礎となる部分でもある。. X.OrgXonDarwin and Mac OS X Torrey T. Lyons 15 December 2003 1. Introduction Xorg, a freely redistributable open-source implementation of the X Window System, has been ported to Darwin and Mac OS X. This document is a collection of information for anyone running Xorg’s X server on Apple’s next generation operating system.

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The history of macOS, Apple's current Mac operating system originally named Mac OS X until 2012 and then OS X until 2016, began with the company's project to replace its 'classic' Mac OS.That system, up to and including its final release Mac OS 9, was a direct descendant of the operating system Apple had used in its Macintosh computers since their introduction in 1984.

We would like to show you a description here but the site won’t allow us. We are going to discuss Darwin: The core of modern Mac OS.Mac OS core is based on multiple components, such as:- BSD- Mach- NeXTSTEPOpenDarwin and PureDarwin.

Darwin is the open source core of OS X.

• 1Rhapsody
  • 1.1Getting this to run
• 2XNU
  • 2.2Getting this to run

Rhapsody

In the beginning of the project it was a fork of OPENSTEP. As far as I've been able to track down there have been 3 public releases of this OPENSTEP Darwin. And there have been several more public releases, up to and including OS X Server 1.0 which was based on the OPENSTEP kernel. Further complicating things, Darwin 0.1 reports itself as Rhapsody 5.3, while Darwin 0.2 and 0.3 report themselves as Darwin 0.2/0.3

From the source code of Darwin 0.1, The kernel is based on OS/F's 6.1 kernel. This is evident in boolean.h as an example:

The following is a table of versions I've been able to put together with information from the Rhapsody Resource Page, and a mirror of the Darwin Q&A.

Getting this to run

i386

Darwin 0.x can be built using a Rhapsody/OS X Server 1.0 binary system as a starting point. However when it comes to emulation and physical hardware the EIDE driver has a problem losing interrupts. It is not only a problem with Darwin/Rhapsody but on physical machines as well. This poses a challenge to 'white box' builders to this day. However the emulator Qemu 0.90 can run Rhapsody albeit with a busmouse driver.

For the sake of preservation, the preserved downloads from Darwin 0.1 are on archive.org. Some components in the 0.1 tars didn't make it to the 0.3 CD-ROM so they are needed to build a more 'complete' set.

At this moment I have the following version of Darwin setup to run on Qemu:

PowerPC

There has been tremendous improvements to Qemu, and it is now possible to install MacOS 9, and OS X Server 1.x, along with OS X 10.x. Darwin for the PowerPC doesn't have an actual installer on the discs, but rather you boot up into MacOS, and restore a disk backup from CD onto your target hard disk, and boot into that. Information can be found about the progress of the Qemu PowerPC on emaculation.com

Currently I have images of 0.3 & 1.0.2:

The process right now involves installing MacOS 9, as 8.6 included on the 0.3 currently doesn't boot. And likewise, the restore program on 0.3 won't run under MacOS 9, but the restore program from the 1.0.2 image will run on MacOS 9.

Techno Darwin Mac Os Download

For the impatient, I do have the images already extracted and setup with Qemu

Currently there is no networking.

XNU

After the release of OS X Server 1.0, it was clear at this point that OS X was doomed, as 3rd party software vendors expressed no interest in porting applications to OPENSTEP/Cocoa API's. Instead Apple would have to go and create the Carbon framework, allowing traditional MacOS applications to use a subset of the toolbox API, and then be ported to OS X. Along the way the older OPENSTEP kernel was dropped in favor of a newer kernel based on Mach 3.0 and a C++ driver framework.

The Darwin OS includes both the XNU kernel, along with all the free tools.

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As far as I recall it started being fully distributed in Darwin 1.0, which was a PowerPC only release, while later releases included native support for the x86.

Versioning confusion

As mentioned over on this thread at nextcomputers.org, that although there was a released memo explaining the logic behind the version number changes so that way Darwin would match up to the build number of XNU, it lead to great confusion. However this letter at least sets it to the original intent.

The following releases can be downloaded here:

• Darwin 1.0 - OS X 10.0 DP 4 - Release notes
• Darwin 1.4.1 - OS X 10.1 x86 - Release notes
• Darwin 1.4.1 - OS X 10.1 ppc - Release notes
• Darwin 6.0.2 - OS X 10.2 x86 - Release notes
• Darwin 6.0.2 - OS X 10.2 ppc - Release notes
• Darwin 7.0.1 - OS X 10.3.1 unknown - Release notes
• Darwin 8.0.1 - OS X 10.4 x86 - Release notes
• Darwin 8.0.1 - OS X 10.4 ppc - Release notes

Getting this to run

Compatibility is a mixed bag, and it was just as bad at the time, and on real hardware.

Darwin 1.4.1

Recently I've found that it will run using Qemu 2.7.I didn't have to do anything special and I've written about it here.

Darwin 8.0.1

Darwin 8.0.1 to run under Qemu 0.13.0. As far as I know 1.4.1, has some kind of CPU issue, and 6.0.1 and 7.0.1 all have ACPI issues.Installation is pretty simple, a config like this is more then enough to get going:

Techno Darwin Mac Os Download