macOS Archive

Via Hackaday: We’re used to the so-called “Hackintoshes”, non-Apple hardware running MacOS. One we featured recently was even built into the case of a Nintendo Wii. But Dandu has gone one better than that, by running MacOS on an unmodified Wii, original Nintendo hardware (French, Google Translate link). How has this seemingly impossible task been achieved? Seasoned Mac enthusiasts will remember the days when Apple machines used PowerPC processors, and the Wii uses a PowerPC chip that’s a close cousin of those used in the Mac G3 series of computers. Since the Wii can run a Linux-based OS, it can therefore run Mac-on-Linux, providing in theory an environment in which it can host one of the PowerPC versions of MacOS. So it’s not really running MacOS 9.2.2 directly on the hardware, but it’s close enough. Impressive work.

I like to do some retro programming, but SheepShaver, the best Mac emulator out there, has a bug that makes copy and paste not function, so is kind of hard to use. I was recently made aware that there is a tool named mpw (lowercase) that emulates just enough of classic MacOS to run Apple’s MPW compiler suite’s command line tools on MacOS X. So I thought I’d give it a try and set that up. The audience for this is probably quite small, but information and tools like this are vital in keeping old platforms approachable for developers and enthusiasts.

FUSE-T is a kext-less implementation of FUSE for macOS that uses NFS v4 local server instead of a kernel extension. The main motivation for this project is to replace macfuse that implements its own kext to make fuse work. With each version of macOS it’s getting harder and harder to load kernel extensions. Apple strongly discourages it and, for this reason, software distributions that include macfuse are very difficult to install. With Apple locking down macOS more and more, developers have to resort to ingenious solutions to maintain the same level of functionality as before. This is an example of that.

In the last six months macOS malware protection has changed more than it did over the previous seven years. It has now gone fully pre-emptive, as active as many commercial anti-malware products, provided that your Mac is running Catalina or later. This article updates those I’ve previously written about Apple’s new tool in the war against malware, XProtect Remediator. Apple has been slowly building out its anti-malware and antivirus tools in macOS, and it has remained mostly quiet about it – understandable considering how bad tech press would have a field day with stories about Apple effectively turning macOS malware protection into a regular antivirus scanner.

The WWDC 2019 had a major impact on the UI toolkit landscape: while the venerable AppKit APIs remained available, Apple removed the old Carbon APIs and introduced 2 brand new frameworks: Mac Catalyst and SwiftUI. Apple sporadically mentioned some apps built with these new UI toolkits. In this article, I try to bring a better overview of Apple’s use of AppKit, Mac Catalyst and SwiftUI in the different versions of macOS, from macOS Mojave to macOS Ventura. Really great visualisation, and shows that the march to SwiftUI continues – however, I’m not entirely sure macOS users should be happy about that.

One of the coolest power-user Mac features of the Apple Silicon era is Apple’s Virtualization framework. Normally the purview of paid software like Parallels Desktop or VMWare Fusion, virtualization lets you run multiple operating systems on one Mac at the same time, which is useful for anyone who wants to run Linux on top of macOS, test an app they’re developing in different versions of macOS, or take a look at the latest macOS Ventura beta without risking their main install. Apple’s documentation and sample projects provide everything you need to get a simple VM up and running with no additional software required. Still, some independent developers have built simple, free apps on top of the Virtualization framework that provides a GUI for customizing settings and juggling multiple guest OSes. A very useful feature, especially for developers.

With macOS 13, Apple has announced that Apple Silicon systems running ARM Linux virtual machines will now be able to access Rosetta for translating of x86_64 Linux binaries… In other words, great Linux x86_64 support when running within Linux (Arm-based) VMs. This is a neat addition.

As expected, Apple has used the stage at its WWDC 2022 keynote to reveal the features and changes coming to macOS in the next major software update for the platform, macOS 13 Ventura. Ventura’s headlining feature is a new multitasking interface called Stage Manager. It’s being billed as a way to fight window clutter on a busy desktop—enter Stage Manager mode, and one of your windows floats to the center of the screen, pushing your other windows into a compressed navigation column on the left of the screen. Click a different app window on the left, and it will fly to the center of the screen, knocking the app you were using before into the navigation column. I’m not entirely sure if adding a second dock to the Mac is going to be a pleasant experience, but I at least like the throwback to a very deep cut – looks-wise, this reminded me a lot of Sun’s Project Looking Glass, a weird, fully 3D *NIX desktop environment with flippable and rotatable windows built in Java. Then again, Apple’s Expose is still one of the best window management features of the past two decades, so after some use this new Stage Manager feature might be of the same pedigree.

A lot. I was the tech lead at Apple for making Mac OS X pass UNIX certification, and it was done to get Apple out of a $200M lawsuit filed by The Open Group, for use of the UNIX trademark in advertising. Fascinating bit of history.

2005! The future is here! You have just spent $129 for the newest release of Mac OS X: Tiger. You’re amazed by the brand new Spotlight and Safari RSS, you like your new OS so much you want to develop apps for it. You read on Apple’s website about this app “Xcode” that just received the version 2.0 update. That’s it! Time to code! You fire up Safari, go to Yahoo! and start searching for Xcode tutorials, unfortunately, besides a bunch of Geocities websites mentioning “Web 2.0” (or whatever that means), you don’t find much information online on how to create apps for Tiger. Wouldn’t it be nice to find a tutorial to help you to get started? I attended a launch party for Tiger at a third party Apple reseller in Berlin. The good old days – when Apple was fun. Good times.

In the next few days those using M1 Macs will be updating to Big Sur 11.5, blissfully ignorant of how, as an admin user, their Mac could refuse to update. Because now, in addition to regular users, admin users and root, there’s another class of admin user: the Owner. Let me explain. Just something to be aware of.

Kernel extensions have long been one of the most powerful and dangerous features of macOS. They enable Apple and third-party developers to support the rich range of hardware available both within and connected to Macs, to add new features such as software firewalls and security protection, and to modify the behaviour of macOS by rerouting sound output to apps, and so on. With those comes the price that kernel extensions can readily cause the kernel to panic, can conflict with one another and with macOS, and most of all are a security nightmare. For those who develop malicious software, they’re the next best thing to installing their own malicious kernel. For some years now, Apple has been encouraging third-party developers to move away from kernel extensions to equivalents which run at a user level rather than in Ring 1. However, it has only been in the last year or so that Apple has provided sufficient support for this to be feasible. Coupled with the fact that M1 Macs have to be run at a reduced level of security to be able to load third-party kernel extensions, almost all software and hardware which used to rely on kernel extensions should now be switching to Apple’s new alternatives such as system extensions. This article explains the differences these make to the user. A good, detailed look at what Apple is doing with kernel extensions in macOS.

BlackBerry recognizes the importance of supporting the cybersecurity community in the fight against cyberthreats, and is therefore following up its release of the PE Tree Tool in 2020 by sharing this methodology report to inform security researchers and pen-testers on how to successfully emulate a MacOS ARM64 kernel under QEMU. Pen-testers and researchers can use the virtualized environment of a stripped-down MacOS kernel for debugging and vulnerability discovery, and this illustrates the extent to which one can use emulation to manipulate and control the kernel to their desired ends, whether it be to find a critical bug or to patch an area of the kernel. More importantly, this project was a successful experiment in cross-platform emulation that has the potential for future development. BlackBerry telling you how to virtualise ARM macOS. Yeah.

After sixteen major releases, you might think there’s not much left to be added to Parallels Desktop – and for the vast majority of Mac users who are still using Intel CPUs, there isn’t. For them, this update to the popular virtualisation software tidies up a few bugs and adds support for the latest version of the Linux kernel, but that’s largely it. Overall it’s not even consequential enough to warrant a full ticking up of the version number.  Yet arguably, this is the most significant release of Parallels Desktop since it first appeared in 2006. Just as version one unlocked the potential of Apple’s then-recent switch to the Intel architecture, this one breaks new ground by allowing you to install and run Windows 10 on Apple Silicon. They conclude it’s a great first release, but that it still has ways to go.