I use macOS VMs a lot for testing. For general policy testing, macOS VMs running in the Apple Silicon version of Parallels work great. One huge limitation of Parallels on Apple Silicon is that there doesn't appear to be a way of creating a macOS VM that is running an earlier version of macOS. On the Intel version of Parallels, I can download the installer app for the version of macOS I want such as 13.3.1 using either the Download Full Installer app or the "softwareupdate --fetch-full-installer --full-installer-version" command, and then use Parallels to select that older macOS installer for my VM. The Apple Silicon version does not appear to allow this. Does anyone have process for this? I have kept older macOS VMs that I made a few months ago saved so I can use them for testing software update policies and workflows, but this is getting annoying. There are many limitations in Parallels for Apple Silicon that don't seem to be getting fixed any time soon. I have tried VMware Fusion on Apple Silicon, but I found it more annoying than Parallels.
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Create macOS VM in Parallels running an older macOS?
Best answer by jamf-42
VMs on macOS 13/ ARM are limited, this will improve with macOS 14..
this might help https://eclecticlight.co/virtualisation-on-apple-silicon/
Also, to try is UTM and VirtualBuddy
But the constraint here is they all use whats allowed by macOS to provide VM.. so they are much the same..
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