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pmt-ehd(8)			   pam_mount			    pmt-ehd(8)

Name
       pmt-ehd - create	an encrypted disk image

Syntax
       pmt-ehd	[-DFx]	[-c  fscipher]	[-h  hash]  [-k	 fscipher_keybits] [-t
       fstype] -f container_path -s size_in_mb

Options
       Mandatory options that are absent are inquired interactively, and  pmt-
       ehd will	exit if	stdin is not a terminal.

       -D     Turn on debugging	strings.

       -F     Force operation that would otherwise ask for interactive confir-
	      mation. Multiple -F can be specified to apply more force.

       -c cipher
	      The cipher to be used for	the  filesystem.  This	can  take  any
	      value that cryptsetup(8) recognizes, usually in the form of "ci-
	      pher-mode[-extras]".  Recommended	are aes-cbc-essiv:sha256 (this
	      is the default) or aes-xts-essiv:sha256.

       -f path
	      Store  the  new  disk image at path. If the file already exists,
	      pmt-ehd will prompt before overwriting unless -F	is  given.  If
	      path refers to a symlink,	pmt-ehd	will act even more cautious.

       -h hash
	      Message digest/hash used for key derivation in the PBKDF2	stage.
	      The default is sha512.

       -i cipher
	      (This option had been removed in pam_mount/pmt_ehd 2.11.)

       -k keybits
	      The keysize for the cipher specified with	-c. Some ciphers  sup-
	      port  multiple  keysizes,	 AES  for example is available with at
	      least the	keysizes 192 and 256.  Defaults	to 256 (to match  aes-
	      cbc-essiv). Note that XTS	uses two keys, but drawn from the same
	      key material, so aes-cbc-256 is equivalent to  aes-xts-512,  and
	      aes-cbc-128 is to	aes-xts-256.

       -p path
	      (This option had been removed in pam_mount/pmt_ehd 2.11.)

       -s size
	      The initial size of the encrypted	filesystem, in megabytes. This
	      option is	ignored	when the filesystem is created on a block  de-
	      vice.

       -t fstype
	      Filesystem to use	for the	encrypted filesystem. Defaults to xfs.

       -u user
	      Give  the	container and fskey files to user (because the program
	      is usually runs as root, and the files  would  otherwise	retain
	      root ownership).

       -x     Do  not initialize the container with random bytes. This may im-
	      pact secrecy.

   Description
       pmt-ehd can be used to create a new encrypted container,	 and  replaces
       the  previous mkehd script as well as any HOWTOs	that explain how to do
       it manually.  Without any arguments, pmt-ehd will interactively ask for
       all  missing  parameters.  To create a container	with a size of 256 MB,
       use:

       pmt-ehd -f /home/user.cont -s 256

pam_mount			  2011-Aug-05			    pmt-ehd(8)

Name | Syntax | Options

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