ubuntu的备份和复原[网络技术]

dd

备份mbr

 dd if=/dev/sda of=/backup/mbr.img bs=512 count=1

 复原mbr

 dd if=/backup/mbr.img of=/dev/sda bs=446 count=1

复原分区表,跳过主指导记录

 dd if=/backup/mbr.img of=/dev/sda bs=1 count=64 skip=446 seek=446

 GNU/TAR

备份

 tar -cpzvf backup.tar.gz /media/usb/*

 复原

 tar -xpzvf backup.tar.gz -C /media/usb/

cpio

dump/restore

xfsdump/xfsrestore

备份

 sudo xfsdump - /boot > backup.file

 复原

 sudo cat backup.file | xfsrestore - /boot

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