 备份MBR分区 1.使用fdisk -l 确定MBR位置 2.备份MBR dd if=/dev/sda1 of=/root/mbr bs=512 count=1 3.恢复MBR dd if=/root/mbr of=/dev/sda1 bs=512 count=1 4.恢复分区表 dd if=/root/mbr of=/dev/sda1 bs=512 skip=446 count=66 注：mbr大小512 所以bs=512 count=1 bs=512 skip=446 count=66 用来确定分区表在备份文档中的位置 |
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