# Backup d'une partition :
dcfldd bs=4096 if=/dev/sda1 | gzip > back-sda1.iso.gz

# Extraire le backup :
gzip -cd back-sda1.iso.gz > back-sda1.iso

# Ou remettre le backup sur /dev/sda1
gzip -cd back-sda1.iso.gz | dcfldd bs=4096 of=/dev/sda1
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