hdiutil detach /Volumes/Install\ macOS\ Big\ Sur hdiutil convert ~/Desktop/BigSur2021.dmg -format UDTO -o ~/Desktop/BigSur2021.iso Rename the resulting .cdr file to .iso .
A: No. Dual booting macOS on standard PC hardware (Hackintosh) requires OpenCore, not a raw ISO. You would extract the .app from the ISO and use OpenCore’s installer.
Alternatively, if you have a legitimate copy from 2021: 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:
But why “2021”? macOS Big Sur was originally released in November 2020. The 2021 versions (specifically 11.2, 11.3, and 11.4) contained critical stability fixes, better M1 emulation support, and security patches that the initial 2020 launch lacked. You would extract the
Published: Retrospective Look (Updated for 2025 Users)
VBoxManage modifyvm "BigSur2021" --cpu-profile "Intel Core i7-6700K" VBoxManage setextradata "BigSur2021" "VBoxInternal2/EfiGraphicsResolution" "1920x1080" VBoxManage modifyvm "BigSur2021" --nested-hw-virt on Boot the ISO. If you see a Guru Meditation error, your 2021 ISO is the only version that supports the -cpu-profile fallback. Because you are using a specific 2021 build, you might encounter these issues: The 2021 versions (specifically 11
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: