crypttab.example

# crypttab: mappings for encrypted volumes
#
# see crypttab(5) for the full details
#
# NAME    - name of volume, /dev/mapper/NAME
# DEVICE  - absolute path, UUID, PARTUUID, or LABEL of device or file
# KEY     - -|<file>|<device>[[:fstype]:<file>]
# OPTIONS - options for cryptsetup, 'swap' runs mkswap after mapping,
#           'noauto' prevents automatic mapping

#NAME      DEVICE              KEY                 OPTIONS
#root      /dev/sda1
#usr       /dev/sda2           -                   allow-discards
#home      /dev/sdb1           LABEL=usbdrv:/key
#swap      /dev/sdb2           /dev/urandom        swap,cipher=aes-cbc-essiv:sha256,size=128
#data      UUID=82d4f2...      -                   noauto
#backup    /home/backup        LABEL=usbdrv2       noauto,keyfile-offset=500,keyfile-size=1024