磁盘分区中，柱面数和可用柱面数量差2(prtvotc看)，能否告知那2个柱面做什么用？

nus

原帖由 wind_sky 于 2006-4-12 16:12 发表
风之幻想，恕我迂腐
58144=58142+2，但这个2可不是分区8和9的那2个柱面，因为那2个柱面在58142的范围内(看一下doni的示例)，所以我想知道还有2个哪儿去了..

boot
primary boot

#man boot
x86 Bootstrap Procedure
     On x86 based systems, the bootstrapping process consists  of
     two conceptually distinct phases, primary boot and secondary
     boot. The primary boot is implemented in the BIOS ROM on the
     system  board,  and  BIOS  extensions  in ROMs on peripheral
     boards. It is distinguished by its ability  to  control  the
     installed  peripheral  devices  and  to provide I/O services
     through software interrupts. It begins the  booting  process
     by  loading  the  first  physical sector from a floppy disk,
     hard disk, or CD-ROM, or, if supported by the system or net-
     work  adapter  BIOS,  by  reading a bootstrap program from a
     network boot server. The primary boot is implemented in  x86
     real-mode code.

[ 本帖最后由 nus 于 2006-4-12 18:31 编辑 ]