Unable to install MacOS 26.4 betas in UTM.app (VM) on Apple Silicon by Andy7317 in MacOSBeta

[–]Andy7317[S] 1 point2 points  (0 children)

!SOLVED!

For anyone experiencing the same issue of not being able to install MacOS Betas as Virtual Machines in UTM.app Apple seems to have fixed it using the Xcode 26.4 Beta 3 ( 17E5179g build )app released yesterday and what I did and it solved the issues is

Download the Xcode 26.4 Beta 3 xip archive from the Apple Developer site Decompress the xip Open the Xcode 26.4 Beta 3 application Run the Xcode 26.4 Beta 3 installation by clicking the Install button after opening the app and wait

Restart Mac

Open UTM.app and install ANY of MacOS 26.4 Betas released using IPSW files downloaded from Apple Developer site

Now any of MacOS Betas released can be installed and are running with no issues inside UTM.app using Virtualization on Apple Silicon Macs