Re: Linux, dd, and image file

From: Stephen Samuel (samuelat_private)
Date: Thu Apr 03 2003 - 10:30:27 PST

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    One problem with imaging each partition is that you may miss some pertinent
    information.  The partitions don't always encompas the entire disk, and
    a knowledgable intruder might store info in the inter-partition spaces.
    (one example includes a recent to-do about some Windows Tax software that
    stored copy-protection information in unused portions of the boot track)
    
    If you're making copies for forensic reasons, you're probably best to make
    a proper copy of the entire disk and then either do ofset mounts (as below)
    or make 'live' copies of the various partitions to play with if you find
    that a bit easier.
    
    jcreyesat_private wrote:
    
    > Maybe the easiest way for image that disc is using dd for each partition, 
     > if possible (you must be able to watch thru al fdisk the partitions), a
    
    > -----Original Message-----
    > From:	"Luis Gomez" <lgomezat_private>
    > It's perfectly possible, but you forgot an important point: you imaged a 
    > DRIVE, and want to mount a PARTITION. IIRC, there are 63 blocks of 512 bytes 
    > between the beginning of the disk and the beginning of the partition, so how 
    > about losetup /dev/loop0 testing.bin -o 63
    
    
    -- 
    Stephen Samuel +1(604)876-0426                samuelat_private
    		   http://www.bcgreen.com/~samuel/
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