[linux] backup of filesystem

backup:

dd if=/dev/hda1 bs=64k [conv=noerror,sync]| gzip -c | split -b 4g – /mnt/backup/hda1.img.gz (4gb files spilt)

retore: 

cat /mnt/backup/hda1.img.gz.* | gzip -dc | dd of=/dev/hda1 bs=64k

 

retore MBR: 

dd if=/mnt/backup/MBR_hda.img of=/dev/hd1 count=1 bs=446

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