Man Linux: Main Page and Category List


     ewfacquirestream - acquires data in the EWF format from stdin


     ewfacquirestream [-A codepage] [-b amount_of_sectors]
                      [-B amount_of_bytes] [-c compression_type]
                      [-C case_number] [-d digest_type] [-D description]
                      [-e examiner_name] [-E evidence_number] [-f format]
                      [-l log_filename] [-m media_type] [-M media_flags]
                      [-N notes] [-o offset] [-p process_buffer_size]
                      [-S segment_file_size] [-t target] [-2 secondary_target]


     ewfacquirestream is a utility to acquire media data from stdin and store
     it in EWF format (Expert Witness Format).  ewfacquirestream acquires
     media data in a format equivalent to EnCase and FTK imager, including
     meta data. Under Linux, FreeBSD, NetBSD, OpenBSD, MacOS-X/Darwin

     ewfacquirestream is part of the libewf package.  libewf is a library to
     support the Expert Witness Compression Format (EWF).  libewf supports
     both the SMART format (EWF-S01) and the EnCase format (EWF-E01).  libewf
     currently does not support the Logical Volume format (EWF-L01). EWF-X is
     an expirimental format intended for testing purposes to enhance the EWF
     format.  libewf allows you to read and write media data in the EWF

     The options are as follows:

     -A codepage
             the codepage of header section, options: ascii (default),
             windows-874, windows-1250, windows-1251, windows-1252,
             windows-1253, windows-1254, windows-1255, windows-1256,
             windows-1257, windows-1258

     -b amount_of_sectors
             the amount of sectors to read at once (per chunk), options: 64
             (default), 128, 256, 512, 1024, 2048, 4096, 8192, 16384 or 32768

     -B amount_of_bytes
             the amount of bytes to acquire

     -c compression_type
             the compression type, options: none (default), empty-block, fast,

     -C case_number
             the case number (default is case_number)

     -d digest_type
             calculate additional digest (hash) types besides md5, options:

     -D description
             the description (default is description)

     -e examiner_name
             the examiner name (default is examiner_name)

     -E evidence_number
             the evidence number (default is evidence_number)

     -f format
             the EWF file format to write to, options: ftk, encase2, encase3,
             encase4, encase5, encase6 (default), linen5, linen6, ewfx.
             libewf does not support streamed writes for other EWF formats.

     -h      shows this help

     -l log_filename
             logs acquiry errors and the digest (hash) to the log filename

     -m media_type
             the media type, options: fixed (default), removable, optical,

     -M media_flags
             the media flags, options: logical, physical (default)

     -N notes
             the notes (default is notes)

     -o offset
             the offset to start to acquire (default is 0)

     -p process_buffer_size
             the process buffer size (default is the chunk size)

     -q      quiet shows no status information

     -s      swap byte pairs of the media data (from AB to BA) (use this for
             big to little endian conversion and vice versa)

     -S segment_file_size
             the segment file size in bytes (default is 1.4 GiB) (minimum is
             1.0 MiB, maximum is 7.9 EiB for encase6 format and 1.9 GiB for
             other formats)

     -t target
             the target file (without extension) to write to (default is

     -v      verbose output to stderr

     -V      print version

     -w      wipe sectors on read error (mimic EnCase like behavior)

     -2 secondary_target
             the secondary target file (without extension) to write to

     ewfacquirestream will read from stding until it encounters a read error.
     On read error it will stop no error information is stored in the EWF

     Empty block compression detects blocks of sectors with entirely the same
     byte data and compresses them using the default compression level.






     # ewfacquirestream -C 1 -D Floppy -E 1.1 -e ’John D.’ -N ’Just a floppy in my system’ -m removable -M physical -t floppy </dev/fd0
     ewfacquirestream 20090229 (libewf 20090229, libuna 20090124, zlib 1.2.3, libcrypto 0.9.8g, libuuid)

     Using the following acquiry parameters:
     Image path and filename:        floppy.E01
     Case number:                    1
     Description:                    Floppy
     Evidence number:                1.1
     Examiner name:                  John D.
     Notes:                          Just a floppy in my system
     Media type:                     removable
     Volume type:                    physical
     Compression used:               none
     EWF file format:                EnCase 5
     Acquiry start offet:            0
     Amount of bytes to acquire:     0 (until end of input)
     Evidence segment file size:     1.4 GiB (1572864000 bytes)
     Block size:                     64 sectors
     Error granularity:              64 sectors
     Retries on read error:          2
     Wipe sectors on read error:     no

     Acquiry started at: Sat Feb 28 11:32:41 2009

     This could take a while.

     Status: acquired 1.4 MiB (1474560 bytes)
             in 1 second(s) with 1 MiB/s (1474560 bytes/second).

     Acquiry completed at: Sat Feb 28 11:32:42 2009

     Written: 1.4 MiB (1474560 bytes) in 1 second(s) with 1 MiB/s (1474560 bytes/second).

     MD5 hash calculated over data: ae1ce8f5ac079d3ee93f97fe3792bda3


     Errors, verbose and debug output are printed to stderr when verbose
     output -v is enabled. Verbose and debug output are only printed when
     enabled at compilation.


     Please report bugs of any kind to <> or on the
     project website:


     These man pages were written by Joachim Metz.


     Copyright 2006-2009 Joachim Metz, Hoffmann Investigations
     <> and contributors.

     This is free software; see the source for copying conditions. There is NO


     ewfacquire(1), ewfexport(1), ewfinfo(1), ewfverify(1)