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In order to create a new encrypted filing system managed by cryptmount,
you can use the supplied 'cryptmount-setup' program, which can be used
by the superuser to interactively configure a basic setup.
Alternatively, suppose that we wish to setup a new encrypted filing
system, that will have a target-name of "opaque". If we have a free
disk partition available, say /dev/hdb63, then we can use this directly
to store the encrypted filing system. Alternatively, if we want to
store the encrypted filing system within an ordinary file, we need to
create space using a recipe such as:
dd if=/dev/zero of=/home/opaque.fs bs=1M count=512
cryptmount --generate-key 32 opaque
cryptmount --prepare opaque
cryptmount --release opaque
cryptmount -m opaque
cryptmount -u opaque
For detail see sample output
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