[TriLUG] backup windows with dd

[Owen Berry]

On Mon, Dec 11, 2006 at 01:18:20PM -0800, Joseph Mack NA3T wrote:
> On Mon, 11 Dec 2006, Ian Kilgore wrote:
> 
> >On Mon, Dec 11, 2006 at 10:09:10AM -0800, Joseph Mack NA3T wrote:
> >>Anyone know why the dd copy of size 6G is not the same size
> >>as the 10G partition?
> >>
> >>Thanks Joe
> >>--
> >>Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> >>jmack (at) wm7d (dot) net - azimuthal equidistant map
> >>generator at http://www.wm7d.net/azproj.shtml
> >>Homepage http://www.austintek.com/ It's GNU/Linux!
> >
> >Is it a sparse file?
> 
> Is the file made by dd sparse?
> 
> I don't know. How would I tell?
> 
> It's a copy of a defragmented partition of about 3G of files 
> followed by 7G of NULLs.

I think you can compare the result of running 'ls -lh' on the file to
running 'du -sh'. They should differ.

Owen