Hi team, I was trying to launch Virtual machine on MacOS 14 using native framework with different Resolutions. let graphicsConfiguration = VZMacGraphicsDeviceConfiguration() graphicsConfiguration.displays = [ VZMacGraphicsDisplayConfiguration(widthInPixels: 2700, heightInPixels: 2200, pixelsPerInch: 100), VZMacGraphicsDisplayConfiguration(widthInPixels: 1920, heightInPixels: 1200, pixelsPerInch: 80) ] return graphicsConfiguration } But I'm getting below error: Fatal error: 'try!' expression unexpectedly raised an error: Error Domain=VZErrorDomain Code=2 "More than one display is configured." UserInfo={NSLocalizedFailure=Invalid virtual machine configuration., NSLocalizedFailureReason=More than one display is configured.} Please let me know it is possible to have multiple resolutions in single VM or not. My use case is to get support of multiple resolutions like 1920x1080, 2048x1536, 1024x728 etc. Thanks.

Every time I attempt to install the macOS Sequoia 15.1 Beta 2 IPSW (UniversalMac_15.1_24B5024e_Restore.ipsw) it fails with the following error in installWithCompletionHandler: Error Domain=com.apple.MobileDevice.MobileRestore Code=3194 "Declined to authorize this DFU file on this device for this user." UserInfo={NSLocalizedDescription=Declined to authorize this DFU file on this device for this user., NSLocalizedFailureReason=Bei der Installation ist ein unbekannter Fehler aufgetreten.} I'm running macOS Sonoma 14.6.1, tried with both MobileDevice.pkg from Xcode 16 beta installed and with the official Device Support for macOS 15 beta installed. In either cases it fails with the same error. The upgrade also fails within a VM for both macOS Sequoia 15.0 Beta 7 and macOS Sequoia 15.1 Beta 2. After pressing Update Now in System Settings › General › Software Update the VM restarts and shows a crash report which unfortunately doesn't contain any useful info (and can't be sent since Apple ID login is only supported with a macOS 15 host...) Anyone know how to solve this?

I used to run VirtualBox on macOS to run Windows guests for some reasons. Recently I bought a new Mac mini M1, now I have a problem - VB does not have a stable release for arm (yet). What other options do I have? BTW, I came across this doc article (https://developer.apple.com/documentation/virtualization/running_macos_in_a_virtual_machine_on_apple_silicon). I read thru it, but could not conclude if it offers the same functionalities as a full-blown VM suite; and more specifically I want to run Windows guests.

Hi Everyone, I've created a Virtual Machine with configuration of 4 GB RAM and 7 vCPU using native framework on Sonoma hardware. But on Sonoma Hardware I'm getting 2500MB/sec write iOPS and, on virtual machine it's around 700MB/sec. And, this is affecting the performance. is there anyway that I can increase the write iOPS on virtual machine?

When running Linux in a VM, if I close the lid of my macbook, when I reopen it, for exemple, two hours later, the Linux VM time has "drifted" and is two hours in the past. https://developer.apple.com/documentation/virtualization/running_linux_in_a_virtual_machine Microsoft solves this issue on their Hypervisor with a RTC device /dev/ptp_hyperv, and configuring chrony to use it, see https://learn.microsoft.com/en-us/azure/virtual-machines/linux/time-sync#chrony Linux KVM do the same : https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/chap-kvm_guest_timing_management#sect-KVM_guest_timing_management-Host-guest-time-sync It seems there is also a virtio_rtc module coming Virtualizing macOS on macOS has AppleVirtualPlatformRTCPlugin setting time on the guest. But how to get a Linux time in sync with

I'm working on a multi-platform app (macOS and visionOS for now). In these early stages it’s easier to target the Mac, but I started with a visionOS project. One of the things the template creates is a RealityKitContent package dependency. I can target macOS 14.5 in Xcode, but when it goes to build the RealiityKitContent, I get this error: error: Building for 'macosx', but '14.0' must be >= '15.0' [macosx] info: realitytool ["/Applications/Xcode-beta.app/Contents/Developer/usr/bin/realitytool" "compile" "--platform" "macosx" "--deployment-target" "14.0" … Unfortunately, I'm unwilling to update this machine to macOS 15, as it's too risky. Running macOS 15 in a VM is not possible (Apple Silicon). This strikes me as a bug, or severe shortcoming, of realitytool. This was introduced with visionOS 1.0, and should be able to target macOS < 15. It's not really reasonable to use Xcode 15, since soon enough Apple will require I build with Xcode 16 for submission to the App Store. Is this a bug, or intentional?

I'm running a MacOS15 beta 3 VM on a MacOS15 beta 3 Host (M2 Pro Mac Mini) using the Apple Virtualization Framework (via https://github.com/s-u/macosvm). For building my app inside the VM I need Rosetta 2, since flutter still uses some Intel binaries. But when I want to install Rosetta 2 I'm always getting the message, that installing Rosetta 2 is not allowed on this system. Digging in the log files I found a message from the installer, that the system is not supported. Searching online I just find a method for using Rosetta 2 inside Linux VM's using the Virtualization Framework. Am I missing something or is it not possible to use Rosetta 2 with MacOS guests?

Hey im trying this example: https://developer.apple.com/documentation/virtualization/running_linux_in_a_virtual_machine And downloaded the vmlinuz and initrd.img from here https://download.fedoraproject.org/pub/fedora/linux/releases/40/Everything/aarch64/os/images/pxeboot but when trying to run i get this error: The output of: file vmlinuz is PE32+ executable (EFI application) Aarch64 (stripped to external PDB), for MS Windows I tried to uncompress with gunzip but this did not work if found this but this did not help eitehr https://developer.apple.com/forums/thread/709539

Hello, I want to add virtual serial ports to a macOS VM (host = Sonoma, guest = Sonoma). Here is what I tried so far: option 1 I create a VZVirtioConsoleDeviceConfiguration and I add a port to it, with a VZFileHandleSerialPortAttachment connected to two pipes: let consoleDeviceConfiguration = VZVirtioConsoleDeviceConfiguration() let guestPort = VZVirtioConsolePortConfiguration() guestPort.isConsole = false guestPort.name = "myserialport" let guestToHostPipe = Pipe() let hostToGuestPipe = Pipe() guestPort.attachment = VZFileHandleSerialPortAttachment( fileHandleForReading: hostToGuestPipe.fileHandleForReading, fileHandleForWriting: guestToHostPipe.fileHandleForWriting ) consoleDeviceConfiguration.ports[0] = guestPort // config is my VZVirtualMachineConfiguration config.consoleDevices = [consoleDeviceConfiguration] Then after the VZVirtualMachine is instantiated, I get the runtime VZVirtioConsoleDevice for my device and I set my service as its delegate. In the guest system, the device is created with the expected name (/dev/cu.myserialport) When I open it (e.g. screen /dev/cu.myserialport 9600), the consoleDevice(_:,didOpen:) delegate method is called as expected. Then I start sending data to hostToGuestPipe.fileHandleForWriting, but I get nothing in my guest system. option 2 Instead of using config.consoleDevices, I add a VZVirtioConsoleDeviceSerialPortConfiguration to config.serialPorts and I use the same scheme as above with a VZFileHandleSerialPortAttachment and two pipes. It works, but: I can't find a way to rename the devices (/dev/cu.virtio, /dev/cu.virtio1, etc) I can't detect when the endpoint is opened/closed. Am I missing something?

Hello, I am working on a macOS Virtualization framework project on Xcode. Is there a way to redirect an USB device connected to the host mac, to a virtual machine. I know this is possible with lower layers but i would like to do it with a VZVirtualMachine object. Is it possible ? Thanks

I was looking through the different Core OS announcements from WWDC24 and stumbled upon documentation for USB Device support in the Virtualization Framework. However, I haven't found any mention about it or the virtualization framework from the event or otherwise. Are there any related release notes, examples or additional material besides the API documentation for the Beta OS?

Last year I remember Apple providing a Device Support download that would allow running macOS 14 in a VM on macOS 13 without needing to install the whole Xcode beta. Is Apple planning on releasing a similar download this year to allow running a macOS 15 VM on macOS 14 without installing the Xcode beta?

Is there any official way to download IPSW files for older versions of macOS like macOS 13 for use with a VM app like Parallels or UTM?

Has anyone tried to install macOS 15 (24A5264n) from the downloaded restore image with the sample project RunningMacOSInAVirtualMachineOnAppleSilicon on the latest macOS 14.5? I am getting a strange error Fatal error: A software update is required to complete the installation. Installation requires a software update. System also shows this dialogue But when I click install it says that the software is not currently available from the Software Update server. I'm trying with the latest public Xcode 15.4 on an M3 Mac.

The M2-series and M3-series of processors seem to use the same ARMv8.6-A extension, however nested virtualization is restricted to the M3-series chips. Is there an architectural reason why this is?

I have a virtual machine using apple's sample code on their developer page but i have no audio. How do i create and setup an audio device for the vm?

i made a virtual machine with the help of the tutorial on the apple developer website running macos on my m2 macbook pro. I am wondering how I can integrate my mouse in the virtual machine instead of it being on top of the app.

When using the sample code included on the Running macOS in a virtual machine on Apple silicon. I am adding the following changes to the swift files: Added to 'MacOSVirtualMachineConfigurationHelper' file: static func createAutomountSingleDirectoryShareDeviceConfiguration() -> VZVirtioFileSystemDeviceConfiguration { let sharedDirectory = VZSharedDirectory(url: directoryURL, readOnly: false) let singleDirectoryShare = VZSingleDirectoryShare(directory: sharedDirectory) // Assign the automount tag to this share. macOS shares automounted directories automatically under /Volumes in the guest. let sharingConfiguration = VZVirtioFileSystemDeviceConfiguration(tag: VZVirtioFileSystemDeviceConfiguration.macOSGuestAutomountTag) sharingConfiguration.share = singleDirectoryShare return sharingConfiguration } Added to 'path' file: let directoryURL = URL(fileURLWithPath: NSHomeDirectory() + "Projects") Added to the 'AppDelegate' file: virtualMachineConfiguration.directorySharingDevices = [MacOSVirtualMachineConfigurationHelper.createAutomountSingleDirectoryShareDeviceConfiguration()] When the above is added and the sample app is run, the following error is shown: macOSVirtualMachineSampleApp/AppDelegate.swift:95: Fatal error: Virtual machine failed to start with Error Domain=VZErrorDomain Code=2 "A directory sharing device configuration is invalid." UserInfo={NSLocalizedFailure=Invalid virtual machine configuration., NSLocalizedFailureReason=A directory sharing device configuration is invalid., NSUnderlyingError=0x600000c343c0 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}} On the host device the directory that is being shared is ~/Projects and it does exist. What do I need to change to create the shared directory and have it work? Is there a sample code project for the same configuration that was shown in the demo?

Hello, I have tried to create a VZVirtualMachine macOS virtual machine on an Apple Silicon Mac. I have installed Docker Desktop inside this virtual machine. Docker is not working: I get this error message: "Hyopervisor check failed". Is there a way to run Docker inside a VZVirtualMachine ? Thanks a lot

We have developing an app that uses Linux VM virtualization and com.apple.security.virtualization entitlement. Question: do we need any approval from Apple to release this app that uses com.apple.security.virtualization entitlement?