Macos Big Sur Iso 2021 -

Alternatively, if you have a legitimate copy from 2021:

hdiutil create -o ~/Desktop/BigSur2021 -size 16384m -volname BigSur2021 -layout SPUD -fs JHFS+ This creates a 16GB sparse image. hdiutil attach ~/Desktop/BigSur2021.dmg -noverify -mountpoint /Volumes/BigSur2021 sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/BigSur2021 --nointeraction Step 4: Convert to ISO (For VMware/VirtualBox) Wait for the createinstallmedia command to finish (~20 minutes). Then detach and convert: macos big sur iso 2021

# If the installer is in your Applications folder ls -la /Applications/Install\ macOS\ Big\ Sur.app Open Disk Utility or use Terminal: Alternatively, if you have a legitimate copy from