[fedora] dd

[Joachim Backes]

On 09/03/2011 03:41 PM, Chris Tyler wrote:
> On Sat, 2011-09-03 at 20:36 +0800, xinyou yan wrote:
>> I want to make sure one thing .
>> Can I use tar to pack the file created by dd.
>> I found use           tar -rf xx.tar yyy.dd
>> can't make the file into the tar file .
>
> It depends on what is in the dd file and what you're trying to do.
>
> I assume that the dd file is a direct copy of a filesystem (for example,
> "dd if=/dev/sda2 of=yyy.dd" assuming that /dev/sda2 is a filesystem
> partition).
>
> If you simply want to reduce the size of the dd file, use gzip:
>    gzip yyy.dd # produces yyy.dd.gz

Better: sudo dd if=/dev/sda2|gzip - > yyy.dd.gz

  (does not need any file yyy.dd!)

>
> -Chris
>

-- 
Joachim Backes <joachim.backes at rhrk.uni-kl.de>

http://www.rhrk.uni-kl.de/~backes

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