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dd Command PLEASE HELP!!!!

 
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Top Forums UNIX for Dummies Questions & Answers dd Command PLEASE HELP!!!!
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Old 01-09-2012
Bug dd Command
Hi

I am currently trying to create a image file to load on a CF Card using the dd command. but for some reason it firstly created a blank image file and now it is creating no image file.

What I am trying to do is the following: I downloaded a embcop file and then also three plugins to add to this program. I placed the files of the plugins under tools of the main file, embcop, as I would like to create one image file (now firstly I do not know if this is the correct place to put the plugins). Now I have saved the file on my Desktop, with the New Folder that I would like to place it in. I typed in the following:

sudo dd if=/home/anesh/Desktop/NacBox of=/home/anesh/Desktop/NACBox.gz

Now it reads it but this is the response I get:
0+0 records in
0+0 records out
0 bytes (0 B) copied, 0.000435447 s, 0.0 kB/s

meaning that it is not detecting any files and not writing any records

Then after I created this image file I must now load it onto the CF Card.

Can any one please assist me with some advise as to how to get this thing working.

Thank you so much
Last edited by LindaVermeulen; 01-09-2012 at 05:38 AM..
 
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LEARN ABOUT DEBIAN

tgtimg

TGTIMG(8)																 TGTIMG(8)

NAME

       tgtimg - Linux SCSI Target Framework Image File Utility

SYNOPSIS

       tgtimg [-o --op <operation>] [-Y --device-type <device-type>] [-b --barcode <barcode>] [-s --size <size>] [-t --type <media-type>]
	      [-f --file <path>]

       tgtimg --help

DESCRIPTION

       Tgtimg is a utility to create and manage the image files used by the TGTD device emulation.

       This command is used to initialize device image files with the additional metadata, such as barcode, list of blocks, total size, etc that
       the TGTD emulation needs.

OPTIONS

       -h, --help
	   Show a help screen and exit.

       -o, --op {new|show}
	   Operation. Is either new to create a new image file or show to show the content of an existing image file.

       -Y, --device-type <type>
	   This specifies the type of image file.

	   Supported device types are :
	       cd   : to create media for a dvd device
	       disk : to create media for a disk device
	       tape : to create media for a tape device

       -t, --type <media-type>
	   When creating a new image, this specifies the type of media to emulate. The available mediatypes depend on the type of the device.

	   Supported media types for cd devices are :
	       dvd+r : create a blank writeable DVD+R disk

	   Supported media types for disk devices are :
	       disk  : create an empty disk

	   Supported media types for tape devices are :
	       data  : create a normal data tape
	       clean : create a cleaning tape
	       worm  : create a worm

       -b, --barcode <barcode>
	   When creating a new image, this argument specifies the barcode to use with this image file. Backup application software often uses
	   barcodes to identify specific tapes. When emulating a VTL, make sure that all tape images use unique barcodes.

       -s, --size <size>
	   When creating a new image, this specifies the size in megabytes for the virtual tape image.

       -f, --file <path>
	   The filename of the image file.

EXAMPLES

       To create a new 100MByte disk

		 tgtimg --op new --device-type disk --type disk --size 100 --file /data/hd001.raw

       To create a new tape image

		 tgtimg --op new --device-type tape --barcode 12345 --size 100 --type data --file /data/tape001.img

       To view the content of an existing image

		 tgtimg --op show --device-type tape --file /data/tape001.img

       To create a new blank DVD+R image

		 tgtimg --op new --device-type cd --type dvd+r --file /data/dvd001.iso

SEE ALSO

       tgtd(8), tgtadm(8), tgt-admin(8), tgt-setup-lun(8).  http://stgt.sourceforge.net/

REPORTING BUGS

       Report bugs to <stgt@vger.kernel.org>

								    04/04/2010								 TGTIMG(8)