标签：mar
备份mbr
dd if=/dev/sda of=/backup/mbr.img bs=512 count=1
还原mbr
dd if=/backup/mbr.img of=/dev/sda bs=446 count=1
还原分区表,跳过mbr
dd if=/backup/mbr.img of=/dev/sda bs=66 skip=446 count=1
使用dd来备份还原分mbr,分区表
原文地址：http://kamui0523.blog.51cto.com/163315/1715246
