You may need to use a smc.present = "TRUE" fix in the VMX file.
The safest and most reliable way to obtain a macOS Big Sur ISO is to build it yourself using an official Apple installer on a Mac computer. This guarantees the file is free from malware, spyware, or stability compromises. Step 1: Download the Big Sur Installer Open the on a compatible Mac. Search for macOS Big Sur . Click Get to download the installer application.
Run macOS in a virtual machine on other hardware for testing. macos big sur iso 2021
Once completed, reopen VirtualBox and start your virtual machine. The system will boot from the ISO into the macOS Recovery environment, allowing you to format the virtual drive via and install the operating system. Troubleshooting Common ISO Installation Errors
VirtualBox (with Extension Pack) or VMware Workstation Player. How to Create a macOS Big Sur ISO (The Safest Method) You may need to use a smc
hdiutil convert /tmp/BigSur.dmg -format UDTO -o /tmp/BigSur.cdr Use code with caution.
hdiutil create -o ~/Desktop/BigSur2021 -size 16384m -volname BigSur2021 -layout SPUD -fs JHFS+ Step 1: Download the Big Sur Installer Open
For developers, system administrators, and virtualization enthusiasts, having a standard installer isn't always enough. A bootable macOS Big Sur ISO file is required to run the operating system inside virtual machines like VMware, VirtualBox, or on non-Apple hardware (Hackintosh).
The represents the peak of Apple’s transition era—beautiful, stable, and powerful. While it no longer receives active development, it remains a valuable tool for virtualization, legacy hardware, and software compatibility testing. By creating your own ISO from Apple’s legitimate installer, you ensure security, integrity, and peace of mind.