| ewfacquire | LOCAL | ewfacquire |
ewfacquire —
acquires data in the EWF format
ewfacquire |
[-A codepage]
[-b number_of_sectors]
[-B number_of_bytes]
[-c compression_values]
[-C case_number]
[-d digest_type]
[-D description]
[-e examiner_name]
[-E evidence_number]
[-f format]
[-g number_of_sectors]
[-l log_filename]
[-m media_type]
[-M media_flags]
[-N notes]
[-o offset]
[-p process_buffer_size]
[-P bytes_per_sector]
[-r read_error_retries]
[-S segment_file_size]
[-t target]
[-T toc_file]
[-2 secondary_target]
[-hqRsuvVwx] source |
ewfacquire is a utility to acquire media
data from a source and store it in EWF format (Expert
Witness Compression Format). ewfacquire acquires
media data in a format equivalent to EnCase and FTK imager, including meta
data. Under Linux, FreeBSD, NetBSD, OpenBSD, MacOS-X/Darwin
ewfacquire supports reading directly from device
files. On other platforms ewfacquire can convert a
raw (dd) image into the EWF format.
ewfacquire is part of the
libewf package. libewf is a
library to access the Expert Witness Compression Format (EWF).
source the source file(s) or device
The options are as follows:
-A
codepage-b
number_of_sectors-B
number_of_bytes-c
compression_values-C
case_number-d
digest_type-D
description-e
examiner_name-E
evidence_number-f
format-g
number_of_sectors-h-l
log_filename-m
media_type-M
media_flags-N
notes-o
offset-p
process_buffer_size-P
bytes_per_sector-q-r
read_error_retries-R-s-S
segment_file_size-t
target-T
toc_file-u-v-V-w-x-2
secondary_targetewfacquire 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 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
ewfacquire should mimic EnCase it will zero all of
sectors specified as error granularity.
Empty block compression detects blocks of sectors with entirely the same byte data and compresses them using the default compression level.
The encase6 and encase7 format allows for segment files greater than 2 GiB (2147483648 bytes).
None
None
ewfacquire can either image devices,
(split) RAW image file(s) or optical disc (split) RAW image files.
ewfacquire will try to detect device information,
but results may vary per platform. In attended mode (default)
ewfacquire will ask for the information it
requires.
# 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
Compression method (deflate) [deflate]:
Compression level (none, empty-block, fast, best) [none]:
Start to acquire at offset (0 <= value <= 1474560) [0]:
The number of bytes to acquire (0 <= value <= 1474560) [1474560]:
Evidence segment file size in bytes (1.0 MiB <= value <= 1.9 GiB) [1.4 GiB]:
The number of bytes per sector (1 <= value <= 4294967295) [512]:
The number of sectors to read at once (16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768) [64]:
The number of sectors to be used as error granularity (1 <= value <= 64) [64]:
The number of retries when a read error occurs (0 <= value <= 255) [2]:
Zero sectors on read error (mimic EnCase like behavior) (yes, no) [no]:
The following information was provided:
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
Is physical: no
EWF file format: Encase 5 (.E01)
Compression method: deflate
Compression level: none
Acquiry start offset: 0
Number of bytes to acquire: 1.4 MiB (1474560 bytes)
Evidence segment file size: 1.4 GiB (1572864000 bytes)
Bytes per sector: 512
Block size: 64 sectors
Error granularity: 64 sectors
Retries on read error: 2
Zero sectors on read error: no
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).
...# ewfacquire usb256.raw.0?? ewfacquire 20120805 Storage media information: Type: RAW image Media size: 262 MB (262144000 bytes) Bytes per sector: 512
...# 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
...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 on the project issue tracker: https://github.com/libyal/libewf-legacy/issues
These man pages were written by Kees Mastwijk.
Alterations for distribution have been made by Joachim Metz.
Copyright 2006-2014, Joachim Metz <joachim.metz@gmail.com>.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
ewfacquirestream(1), ewfexport(1), ewfinfo(1), ewfmount(1), ewfrecover(1), ewfverify(1)
| January 19, 2014 | libewf |