The safest and most reliable method for obtaining a macOS ISO is to create it yourself using the official installer provided by Apple. Apple distributes macOS through the App Store as an application bundle (typically ending in .app ). Because this is a proprietary format, it must be converted.

It is important to address the legal framework surrounding macOS. Unlike many Linux distributions, macOS is not open source. It is proprietary software owned by Apple Inc. While the company generally allows the free download and installation of macOS on Apple hardware, installing it on non-Apple hardware (commonly known as a "Hackintosh") exists in a legal grey area. While creating an ISO for virtualization on a Mac is perfectly acceptable, distributing that ISO to others—or using it to run macOS on generic PC hardware—often violates the software license agreement. Users should be aware of these boundaries to ensure they remain compliant with software usage rights.

: (Replace "Sequoia" with your version if different) sudo /Applications/Install\ macOS\ Sequoia.app/Contents/Resources/createinstallmedia --volume /Volumes/macOS --nointeraction

# Create a blank disk image hdiutil create -o ~/Desktop/macOS.iso -size 16g -layout SPUD -fs JHFS+

: hdiutil convert /tmp/macOS.dmg -format UDTO -o ~/Desktop/macOS.cdr Rename to .iso : mv ~/Desktop/macOS.cdr ~/Desktop/macOS.iso Essential Considerations