[nflug] which copy?

Ken Smith kensmith at cse.Buffalo.EDU
Wed Feb 7 14:52:38 EST 2007

On Wed, 2007-02-07 at 14:40 -0500, eric wrote:
> Why would you use:
> 1.) ssh server "cat /home/partition.img" \ |sudo dd of=/dev/hda
> over
> 2.) ssh server "dd if=/home/partition.img" | dd of=/dev/hda
> I found # 1.) in a book

The default block size for dd is 512 bytes which isn't optimal for
reading data through the filesystem or writing data through a network
socket.  cat will default to reading/writing in larger chunks.

                                                Ken Smith
- From there to here, from here to      |       kensmith at cse.buffalo.edu
  there, funny things are everywhere.   |
                      - Theodore Geisel |

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