Understanding how dd works
Patrick O'Callaghan
pocallaghan at gmail.com
Fri Jun 27 13:55:21 UTC 2008
On Fri, 2008-06-27 at 17:06 +0930, Malcolm Kay wrote:
> On Wed, 25 Jun 2008 10:49 pm, Patrick O'Callaghan wrote:
> > Note also that if you're not careful you can backup a file or even a
> > filesystem that you can't restore because it's too big, especially
> if
> > copying it to some medium (e.g. a tape drive or non-UNIX disk
> system)
> > that can't handle sparse files.
>
> Mostly this should not be too much of a problem because one would
> usually
> archive in some way and one depends on the archiver to manage the
> sparse files.
> GNU tar has a --sparse option. So with the --sparse option a tar
> archived set of
> files should fit back where they came from.
That's what "being careful" means.
poc
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