Iso | Download Macos Ventura
hdiutil unmount /Volumes/Install\ macOS\ Ventura Convert to ISO (hybrid):
mv ~/Desktop/Ventura.iso.cdr ~/Desktop/Ventura.iso ISO will be ~12–14 GB. You can zip it: Download Macos Ventura Iso
This creates Ventura.dmg . Double-click to mount it – it appears as a volume named Ventura . In Terminal: Download Macos Ventura Iso
sudo /Applications/Install\ macOS\ Ventura.app/Contents/Resources/createinstallmedia --volume /Volumes/Ventura --nointeraction Wait 10–20 minutes for it to finish. Unmount the volume (but keep the .dmg file): Download Macos Ventura Iso
After download, the installer will be in /Applications/Install macOS Ventura.app Open Disk Utility → File → New Image → Blank Image