Groups | Search | Server Info | Login | Register

Groups > comp.os.linux.misc > #16901

Re: Is there a good "dd for dummies" tutorial around?

Show all headers | View raw

On 01/03/16 02:05, pureheart@pacbell.net wrote:
> So that means would write*anything*  to the drive (or any file, I guess)
> without regards to any formatting such as whatever ext4 et. al. does to the
> thing when it sets it up.
>
> So of course if you wrote a giant text file, for example, all the formatting
> would be loss for any filesystem that happened to be there, correct?

Correct. And toy could dd it back again, if you knew how big it was.

Lets say that the whole disk is one huge file. That is not particularly 
useful, sop at the front of that file is a reserved space for a little 
database, that says 'inisde the rest of me are other files, and these 
are their names, and this is where you can find them'

And that is in very crude terms what a filesystem does, and once 
'mounted', all that is hidden, and you see directories and files 
directly, as the operating system is in charge of reading the inodes and 
directory blocks and connecting the file names to the right bits of disk 
and presenting them to you in an orderly fashion.


-- 
"I am inclined to tell the truth and dislike people who lie consistently.
This makes me unfit for the company of people of a Left persuasion, and 
all women"

Back to comp.os.linux.misc | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Is there a good "dd for dummies" tutorial around? pureheart@pacbell.net - 2016-02-20 10:04 -0800
  Re: Is there a good "dd for dummies" tutorial around? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2016-02-20 20:24 +0200
  Re: Is there a good "dd for dummies" tutorial around? William Unruh <unruh@invalid.ca> - 2016-02-20 18:26 +0000
  Re: Is there a good "dd for dummies" tutorial around? Robert Heller <heller@deepsoft.com> - 2016-02-20 12:40 -0600
  Re: Is there a good "dd for dummies" tutorial around? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-02-20 14:10 -0500
  Re: Is there a good "dd for dummies" tutorial around? "Carlos E. R." <robin_listas@invalid.es> - 2016-02-22 02:59 +0100
    Re: Is there a good "dd for dummies" tutorial around? "Carlos E.R." <robin_listas@invalid.es> - 2016-02-22 04:39 +0100
      Re: Is there a good "dd for dummies" tutorial around? pureheart@pacbell.net - 2016-02-24 15:55 -0800
        Re: Is there a good "dd for dummies" tutorial around? "Carlos E. R." <robin_listas@invalid.es> - 2016-02-26 03:39 +0100
          Re: Is there a good "dd for dummies" tutorial around? pureheart@pacbell.net - 2016-02-29 18:05 -0800
            Re: Is there a good "dd for dummies" tutorial around? The Natural Philosopher <tnp@invalid.invalid> - 2016-03-01 02:45 +0000
            Re: Is there a good "dd for dummies" tutorial around? "Carlos E.R." <robin_listas@invalid.es> - 2016-03-01 11:14 +0100

csiph-web