硬盘的前63个扇区

crossie · #1

一般分区的第一个扇区是硬盘的第64个扇区
硬盘的第1个扇区是mbr
那第2~63个扇区是做什么用的?

自由建客 · #2

空的，grub应该利用上了，要不怎么可能在512字节里面挤下，不过我还没研究

crossie · #3

自由建客写了：空的，grub应该利用上了，要不怎么可能在512字节里面挤下，不过我还没研究

谢谢
我也找到下面一段
http://mirror.href.com/thestarman/asm/m ... ables2.htm

This area is found on all "Basic Disk" partitioned hard disks, and although it's "unused" by the OS, you may find some very interesting data here. When GRUB, or some other boot manager, installs boot code into the MBR, it may also fill a dozen or so sectors of this area with part of its own second stage code. In the past, both DDO (Dynamic Drive Overlay) software and boot viruses would fill many of these sectors, and some unruly application may have stuffed data here as well. A few manfacturers still insert information about your computer and/or its hard disk into some of these sectors too, so users should carefully examine every sector here, just to know what might be stored in them.