Salut Hervé,
 
	I found a mistake! When I extract the Bootpack, there is the file kernel.plist in the folder Extra. The file is not in the right format (maybe you can change that?). After the correction, I was able to boot.
 
	kernel.plist before:
 
	 
 
	<?xml version="1.0" encoding="UTF-8"?> 
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> 
	<plist version="1.0"> 
	<dict/> 
	          <key>KernelBooter_kexts</key> 
	          <string>Yes</string> 
	</plist>
 
	 
 
	kernel.plist changed (hopefully correct)
 
	 
 
	<?xml version="1.0" encoding="UTF-8"?> 
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> 
	<plist version="1.0"> 
	<dict> 
	          <key>KernelBooter_kexts</key> 
	          <string>Yes</string>
 
	</dict>
 
	</plist>
 
	 
 
	Now I have post boot Problems. I will report and ask for it. Before that, I will search myself for a solution.
 
	Merci beaucoup!