In Disk Utility, double-click your downloaded Snow Leopard DMG to mount it on your system.
Snow Leopard is (no PowerPC G4/G5) and requires a specific hardware vintage. Mac Os X 10-6 Snow Leopard Download Dmg
In macOS 10.14 and earlier, it’s in /Applications/Install Mac OS X Snow Leopard.app/Contents/SharedSupport/InstallESD.dmg . On modern Macs, you must use a legacy device. In Disk Utility, double-click your downloaded Snow Leopard
Because Apple does not offer a legal digital download link anymore, obtaining the Mac OS X 10.6 Snow Leopard.dmg exists in a gray area. Most retro Mac communities accept that if you own a Mac from that era, downloading the DMG from an archive site falls under "abandonware." On modern Macs, you must use a legacy device
If you are a registered Apple Developer (or know someone who is), you can access a genuine copy of the Mac OS X 10.6 Snow Leopard build DMG directly from Apple. This is the most official and trustworthy method available today.
In Disk Utility, click on your formatted USB partition, navigate to the "Restore" tab, drag the mounted Snow Leopard installation volume into the "Source" field, and drag your USB partition into the "Destination" field. Click Restore . Using TransMac on a Windows PC
Before you proceed, ensure your Mac meets the basic requirements: