Hi, I am real kernel newbie. so I hava a two questions. 1. What is the "bde" in /arch/i386/boot/bootsect.S 2. What is the difference in no "_" prefix variables,functions and defines (for example pte_offset) one "_" prefix ... and two "_" prefix ... (__pte_offset) (and also such as __XXXX__) Regards, -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/