How to debug kernel panic in boot

Hello, When I put the original kernel extension in /System/Library/Extensions/, I 'm faced with the problem that Kernel panic happens in boot time. So, I 'd like to debug boot, but in the case of boot, I don't know how to create the symbol file for remote debug. And, in the case of Kernel panic, I can't get the system.log. Does the method of debugging kernel panic in boot exist ? Best Regards, tusyoshi _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.