Alternatively, if you have a legitimate copy from 2021:
Are you trying to install this on a (like VirtualBox or VMware)?
sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/BigSur --nointeraction
If you have access to a working Mac, this is the safest way to get a legitimate ISO for VirtualBox or VMware. macos big sur iso 2021
: Users on Quora often compared Big Sur to "Snow Leopard," viewing it as a necessary cleanup and modernization of the macOS architecture. Downloading the ISO in 2021
This is the downside of using a 2021 ISO in the current day:
: The official full installer (approx. 12GB) could be used to create bootable USB drives or custom ISOs, with versions like 11.2 available on archives like the Internet Archive . Alternatively, if you have a legitimate copy from
Once you have your ISO file (e.g., BigSur.iso ), you can load it into your virtualization software. Create a new Virtual Machine. Select "macOS" as the operating system. Point the CD/DVD drive to your ISO file.
Use the following command to download the latest available version:
hdiutil attach /tmp/BigSur.dmg -noverify -mountpoint /Volumes/BigSur Downloading the ISO in 2021 This is the
smc.version = "0"
The phrase "macOS Big Sur ISO 2021" usually refers to the versions active during that year (e.g., 11.2, 11.4, 11.5, or 11.6). While Apple has moved on to newer macOS versions (like Ventura, Sonoma, Sequoia, and Tahoe), you can still find these older ISOs.
Disclaimer: Downloading macOS files from unofficial sources carries security risks. Always scan downloaded files with updated antivirus software before opening them.
Since macOS Big Sur is technically a older operating system (released in 2020, with the final 11.x update released in late 2021), a "review" of a typically refers to evaluating its use for virtual machines (VMs) rather than a review of the OS itself.
mv ~/Desktop/BigSur.cdr ~/Desktop/BigSur.iso