# Download macOS installer from App Store, then: hdiutil create -o /tmp/Monterey -size 12g -volname Monterey -layout SPUD -fs HFS+J hdiutil attach /tmp/Monterey.dmg sudo /Applications/Install\ macOS\ Monterey.app/Contents/Resources/createinstallmedia --volume /Volumes/Monterey --nointeraction hdiutil detach /Volumes/Install\ macOS\ Monterey hdiutil convert /tmp/Monterey.dmg -format UDTO -o Monterey.iso mv Monterey.iso.cdr Monterey.iso
Follow these Terminal commands to build your ISO. Replace [Version] with your specific macOS version (e.g., Sonoma , Ventura , or Monterey ). 1. Create a Blank Disk Image iso macos
Use hdiutil to create a hybrid ISO (HFS+ISO9660): # Download macOS installer from App Store, then:
A macOS ISO is a universal disk image format that can be read by almost any virtualization software. Common use cases include: Create a Blank Disk Image Use hdiutil to
Open Terminal and create a temporary disk image: hdiutil create -o /tmp/macOS -size 16384m -volname macOS -layout SPUD -fs HFS+J