Open VMware Fusion and create a new custom VM.cdr from the end and you'll have a ready to use. iso (example: hdiutil convert /path/to/macOS_1100_installer.dmg -format UDTO -o /output/path/macOS_1100_installer.iso) force eject the disk that was unable to unmount during the build process.iso build process fails when using create_macos_vm_install_dmg and you see a message like this: hdiutil: convert failed - Resource temporarily unavailable And you really can't go wrong with any of Rich's great scripts. The easiest way to do this would be to download the installer via installinstallmacos.py and then build the. Want to build yourself a Big Sur beta 9 VM for testing purposes? Read on. Let's just dig into how to get this ball rolling. But if you try to build a VM using the beta 9 full disk image it will fail stating that it is unable to create the installation medium. In order to keep up with Apples advancing technologies, Fusion 12 requires macOS Catalina or Big Sur. Testing Big Sur in a VM using VMware Fusion 12. Fusion 12 Pro is priced at 199, or 99 as an upgrade. I expect this to be a completely unnecessary speck of the internet within a few days. The install requires at least 80gb or more 4. Create a new VM by installing a fresh copy of 10.15 Catalina 2. This may change with beta 10 or an update to VMware Fusion 12. How To Install Big Sur 11 on Parallels Desktop 1. Eventually I found my way to VMware Tools download page (note: pretty sure you need to be signed in to access this.) From here I downloaded VMware Tools packages for OS X v11.2.5 (as of writing this) and installed it.⚠️ Important Note: this is being written at a time when the only full macOS Big Sur beta installer available is beta 9. I had to force quit the vmware-vmx process.Īfter some searching I came across this post with a tweet that I hadn’t seen before stating that a newer VMware Tools could auto-resize Fusion windows with these new appleGPU0 config settings:Īlso, install VMware Tools 11.2 in your Big Sur VM with the paravirt GPU and you’ll have auto fit working nicely, no Fusion update required 🙂Īt this point I tried reinstalling VMware Tools via Fusion, but nothing changed.

Quick side note: turning on Accelerated 3D Graphics at this point super broke VMware Fusion. Even though I specified 1920×1080 in the config no matter what I tried I couldn’t get any other resolution. However there was one glaring problem: the resolution was stuck at 1024×768. On boot I could immediately tell a speed difference. I reviewed Emily’s post and added svga.present='FALSE' I had seen a Michael Roy post a while ago about Fusion being able to utilize Apple’s Metal framework to speed things up and I remembered reading Emily’s post on how to enable it. I was testing something out today in a Big Sur VM and getting really frustrated with the absolute terrible performance. Add appleGPU0.present='TRUE' and svga.present='FALSE'.Download and install VMware Tools 11.2.5 or later.

Vmware fusion on big sur