the EWF file format to write to, options: ewf, smart, ftk, encase1, encase2, encase3, encase4, encase5, encase6 (default), encase7, linen5, linen6, linen7, ewfx.
.It Fl g Ar number_of_sectors
the number of sectors to be used as error granularity
.It Fl h
shows this help
.It Fl l Ar log_filename
logs acquiry errors and the digest (hash) to the log filename
.It Fl m Ar media_type
the media type, options: fixed (default), removable, optical, memory
.It Fl M Ar media_flags
the media flags, options: logical, physical (default)
.It Fl N Ar notes
the notes (default is notes)
.It Fl o Ar offset
the offset to start to acquire (default is 0)
.It Fl p Ar process_buffer_size
the process buffer size (default is the chunk size)
.It Fl P Ar bytes_per_sector
the number of bytes per sector (default is 512) (use this to override the automatic bytes per sector detection)
.It Fl q
quiet shows minimal status information
.It Fl r Ar read_error_retries
the number of retries when a read error occurs (default is 2)
.It Fl R
resume acquiry at a safe point
.It Fl s
swap byte pairs of the media data (from AB to BA) (use this for big to little endian conversion and vice versa)
.It Fl S Ar 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 and encase7 format and 1.9 GiB for other formats)
.It Fl t Ar target
the target file (without extension) to write to (default is image)
.It Fl T Ar toc_file
specify the file containing the table of contents (TOC) of an optical disc. The TOC file must be in the CUE format.
.It Fl u
unattended mode (disables user interaction)
.It Fl v
verbose output to stderr
.It Fl V
print version
.It Fl w
zero sectors on read error (mimic EnCase like behavior)
.It Fl 2 Ar secondary_target
the secondary target file (without extension) to write to
.El
.Pp
.Nm ewfacquire
will read from a file or device until it encounters a read error. On read error it will retry the number of retries specified. If
.Nm ewfacquire
still is unable to read and, if specified, it will zero (wipe) the the remainder of the number of sectors specified as error granularity. If
.Nm ewfacquire
should mimic EnCase it will zero all of sectors specified as error granularity.
.Pp
Empty block compression detects blocks of sectors with entirely the same byte data and compresses them using the default compression level.
.Pp
The encase6 and encase7 format allows for segment files greater than 2 GiB (2147483648 bytes).
.Sh ENVIRONMENT
None
.Sh FILES
None
.Sh EXAMPLES
.Nm ewfacquire
can either image devices, (split) RAW image file(s) or optical disc (split) RAW image files.
.Nm ewfacquire
will try to detect device information, but results may vary per platform.
In attended mode (default)
.Nm ewfacquire
will ask for the information it requires.
.Ss To image a floppy:
.Bd -literal
# ewfacquire /dev/fd0
ewfacquire 20120805
Device information:
Bus type:
Vendor: Y-E DATA
Model: USB-FDU
Serial:
Storage media information:
Type: Device
Media size: 1.4 MB (1474560 bytes)
Bytes per sector: 512
Information about acquiry required, please provide the necessary input
Image path and filename without extension: floppy
Case number: 1
Description: Floppy
Evidence number: 1.1
Examiner name: John D.
Notes: Just a floppy in my system
Media type (fixed, removable, optical, memory) [fixed]: removable
Media characteristics (logical, physical) [logical]:
Use EWF file format (smart, ftk, encase1, encase2, encase3, encase4, encase5, encase6, encase7, linen5, linen6, linen7, ewfx) [encase6]: encase5
Continue acquiry with these values (yes, no) [yes]:
Acquiry started at: Sun Aug 5 11:32:41 2012
This could take a while.
Status: at 2%.
acquired 32 kB (32768 bytes) of total 1.4 MiB (1474560 bytes).
.Dl ...
Status: at 100%.
acquired 1.4 MiB (1474560 bytes) of total 1.4 MiB (1474560 bytes).
completion in 1 second(s) with 1 MiB/s (1474560 bytes/second).
Acquiry completed at: Sun Aug 5 11:32:42 2012
Written: 1.4 MiB (1474560 bytes) in 1 second(s) with 1 MiB/s (1474560 bytes/second).
MD5 hash calculated over data: ae1ce8f5ac079d3ee93f97fe3792bda3
.Ed
.Ss To convert a split RAW image into an EWF image:
.Bd -literal
# ewfacquire usb256.raw.0??
ewfacquire 20120805
Storage media information:
Type: RAW image
Media size: 262 MB (262144000 bytes)
Bytes per sector: 512
.Dl ...
.Ed
.Ss To convert an optical disc RAW image with a table of contents file into an EWF image:
.Bd -literal
# ewfacquire -T cdrom.cue cdrom.iso
ewfacquire 20120805
Storage media information:
Type: Optical disc RAW image
Media size: 42 MB (42885120 bytes)
Bytes per sector: 2048
Sessions:
total number: 2
at sector(s): 0 - 20619 number: 20620
at sector(s): 20620 - 20939 number: 320
.Dl ...
.Ed
.Sh DIAGNOSTICS
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.
.Sh BUGS
Please report bugs of any kind to <joachim.metz@gmail.com> or on the project website:
http://code.google.com/p/libewf/
.Sh AUTHOR
.Pp
These man pages were written by Kees Mastwijk.
.Pp
Alterations for distribution have been made by Joachim Metz.
.Sh COPYRIGHT
.Pp
Copyright 2006-2013, Joachim Metz <joachim.metz@gmail.com>.
.Pp
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.