--- a/preseed/isolinux.cfg	Thu Jan 05 15:05:38 2012 +0200
+++ b/preseed/isolinux.cfg	Thu Jan 05 16:47:04 2012 +0200
@@ -10,8 +10,8 @@
 	menu label ^Install (Preseed {GUEST_NAME})
 	menu default
 	kernel /install.amd/vmlinuz
-	append vga=788 initrd=/install.amd/initrd.gz auto=true priority=critical preseed/file=/cdrom/{PRESEED_NAME} preseed/file/checksum={PRESEED_CHECKSUM} -- quiet 
 
+	append vga=788 initrd=/install.amd/initrd.gz {INSTALL_BOOT_ARGS} 
 
 
 default vesamenu.c32