Disk Imaging / Acquisition Using Linux DD / DCFLDD command

Disk Acquisition in Linux using old school DD command and DCFLDD for an expanded usage of DD.
Command Usage : {dd if=/dev/sda of=/disk1.img}
Where if=Source FILE / DIsk / Partition /Block of=Destination Image
Output Formats supported : IMG , DD


DCFLDD : Enhanced version of dd
Supports the following :
1. On-the-fly hashing of the transmitted data.
2. Progress bar of how much data has already been sent.
3. Wiping of disks with known patterns.
4. Verification that the image is identical to the original drive, bit-for-bit.
5. Simultaneous output to more than one file/disk is possible.
6. The output can be split into multiple files.
7. Logs and data can be piped into external applications.

Command Usage : {dcfldd if=/dev/sourcedrive hash=md5,sha256 hashwindow=10G md5log=md5.txt sha256log=sha256.txt \
hashconv=after bs=512 conv=noerror,sync split=10G splitformat=aa of=destinationdriveimage.dd}
Where
* hash=NAME
Available parameters : md5, sha1, sha256, sha384 or sha512
Note-
By default algorithm is set to md5. To select multiple algorithms , seperate the hash names using comma.

* bs=BYTES
Defines Number of Bytes , used after setting a parameter to define the number of bytes on that operation

* hashwindow=BYTES
Helps you to perform hash on every 'X BYTES' amount of data

* hashconv=[before|after]
Helps you to perform the hashing before or after the BS

*conv=KEYWORDS
convert the file as per the comma separated keyword list e.g. noerror/sync




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Infinite Skills
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