shell dd备份系统
备份MBR、根分区、Boot分区#!/bin/bash
Bak_dir=/mnt #已挂载的移动硬盘或其他外设
Mbr=`fdisk -l |grep "Disk" |awk NR==1'{print $2}' |awk -F"/" '{print $3}'|sed s/://g`
Root=`df |awk '/\//{print $1}' |awk NR==1'{print $1}'`
Boot=`df |awk '/\/boot/{print $1}'`
### Backup MBR
dd if=/dev/$Mbr of=$Bak_dir/mbr.img bs=512 count=1
### Backup Root [/]
dd if=$Root |gzip >$Bak_dir/root.img.gz
### Backup Boot
dd if=$Boot |gzip >$Bak_dir/boot.img.gz
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