The update to "The Design and Implementation of 4.4BSD Operating System" : http://www.mckusick.com/FreeBSDbook.html Amazon link: http://www.amazon.com/exec/obidos/tg/detail/-/0201702452/qid=1085575007/sr=1-2/ref=sr_1_2/103-5919618-6163829?v=glance&s=books release date - August 27, 2004 Enjoy :-) Svetoslav Agafonkin Imperia AG