"Hack" OS X Snow Leopard upgrade disc to full version

defaults write com.apple.finder AppleShowAllFiles TRUE

killall Finder

cd Desktop/install

xar -x -f OSInstall.mpkg

<?xml version="1.0"?>

<installer-gui-script minSpecVersion='1'>

	<options
		eraseOptionAvailable='true'
		hostArchitectures='i386'
		allow-external-scripts='yes'
	/>
	
	<title>MacOSX_Title</title>
	<license file="License.rtf" sla="EA0560"/>
	<welcome file='Welcome.rtfd'/>

	<script>
        var minRam = 1024;
	
	function checkSupportedMachine(machineType){
		// Fail on G3
		if (1 != system.sysctl('hw.vectorunit') ) {
			return false;
		}

		var badMachines = ['iMac','PowerBook1,1','PowerBook2,1', 'AAPL,Gossamer', 'AAPL,PowerMac G3', 'AAPL,PowerBook1998', 'AAPL,PowerBook1999'];
		
		if(machineType){
			var length = badMachines.length;
			
			// Fail if any of the compatible values match the list of badMachines
			for( var j = 0; j < length; j++ ){
				if(machineType == badMachines[j]){
						return false;
				} 

			}
			
		}
	
		// require 867Mhz+
		if (system.sysctl("hw.cpufrequency") < 866000000) {
			return false;	
		}
			
		return true;
	}
	
	function checkSupportedBootRom(machineType){
		var machinesNeedingROMUpdate = new Array();
		machinesNeedingROMUpdate['PowerMac2,1'] = 'f2';
		machinesNeedingROMUpdate['PowerMac2,2'] = '$0003.30f3';
		
		try{
			var bootROMEntry = system.ioregistry.matchingName('boot-rom','IODeviceTree');
			var bootROM;
			if ( bootROMEntry.length > 0 ) {
				var bootROM = bootROMEntry[0]['BootROM-version'];
			} else {
				return true;
			}

			// Fail if any of the compatible values match the machine/ROM pairs that need updating
			for( k in machinesNeedingROMUpdate ){
				if((machineType == k) && (bootROM == machinesNeedingROMUpdate[k])){						
					return false;
				}
			}
		} catch(e) {
			system.log('checkSupportedBootRom threw exception ' + e);
		}
		
		// if we can't find it, assume it's supported
		return true;
	}

function hasAtLeastRam(RAM) {
        var requiredRAM = (RAM * 1024 * 1024);
        var actualRAM = system.sysctl('hw.memsize');

        return (actualRAM > (requiredRAM - 1));
}


[color=red]	function earlyMachineCheck(machineType) {
		var earlyIntelMachines = [ "iMac4,1", "iMac4,2", "iMac5,1", "iMac5,2", "iMac6,1", "iMac7,1",
							  "MacBook1,1", "MacBook2,1", "MacBookPro1,1", "MacBookPro1,2",
							  "MacBookPro2,1", "MacBookPro2,2", "MacBookPro3,1", "Macmini1,1",
							  "Macmini2,1", "MacPro1,1", "MacPro2,1",
							];
	
		if(machineType){
			var length = earlyIntelMachines.length;
			
			for( var j = 0; j < length; j++ ){
				if(machineType == earlyIntelMachines[j]){
					return true;
				} 

			}
			
		}
	}[/color]

	function installCheckScript(){
			
			try{
				var machineType = system.ioregistry.fromPath('IODeviceTree:/')['compatible'];
				
				if ( typeof(machineType) == "string") {
						if(!checkSupportedMachine(machineType)){
							my.result.message = system.localizedStringWithFormat('IC_Machine_message');
							my.result.type = 'Fatal';
							return false;
						}
			
						if(!checkSupportedBootRom(machineType)){
							my.result.message = system.localizedStringWithFormat('IC_Firmware_message');
							my.result.type = 'Fatal';
							return false;
						}
				}
				else {
					for(var i = 0;i < machineType.length; i++){		
						if(!checkSupportedMachine(machineType[i])){
							my.result.message = system.localizedStringWithFormat('IC_Machine_message');
							my.result.type = 'Fatal';
							return false;
						}
			
						if(!checkSupportedBootRom(machineType[i])){
							my.result.message = system.localizedStringWithFormat('IC_Firmware_message');
							my.result.type = 'Fatal';
							return false;
						}
					}
				}
				if(!hasAtLeastRam(minRam)){
					my.result.message = system.localizedStringWithFormat('IC_RAM_message');
					my.result.type = 'Fatal';
					return false;
				}
				
[color=red]				if (system.compareVersions(system.version.ProductVersion, '10.6') >= 0) {
					if (earlyMachineCheck(machineType)) {
						var checkResult = system.run('./OSCheck.pl');
		                if(0 != checkResult){
		                       my.result.message = system.localizedStringWithFormat('IC_Upgrade_message', '10.5');
		                       my.result.type = 'Fatal';
		                       return false;
		                }
					}
				}
				
				findBJPrinters();[/color]
				
			}catch (e){
				system.log('installCheckScript threw exception ' + e);
			}
			
			return true;
	}

	function volCheckScript(){
			var target = my.target;
			var destSystemVersion = target['systemVersion'];
						
			if(system.files.fileExistsAtPath(my.target.mountpoint + "/Backups.backupdb")) {
				my.result.message = system.localizedString('VC_Backup_message');
				my.result.type = 'Fatal';
				return false;
			}
						
			if(destSystemVersion){
							
				if( typeof(isFNI) == "undefined" )
				{
					if(destSystemVersion.isServer){
						my.result.message = system.localizedString('VC_ServerVersion_message');
						my.result.type = 'Fatal';
						return false;
					}
				}
			}			
			
			return true;
	}

xar -c -f OSInstall.mpkg *