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Bug#730871: general: Filesystem? Some problems with sizes of files.

30.11.2013, 19:56, "Konstantin Khomoutov" <flatworm@users.sourceforge.net>:
> May be the file you're trying to copy is sparse [1]?  GNU tar does
> support this.  Flash drives typically contain FAT32 on them which
> doesn't support sparse files, so when copying such a file from a "real"
> file system to FAT32 the kernel's copying routine has to "stuff" the
> file.
> Try running
> $ du --apparent-size -h backup272291.tar
> to see how much disk space it's worth taking into account its
> sparseness, if any.
> 1. http://en.wikipedia.org/wiki/Sparse_file

epros@home-desktop:/$ du --apparent-size -h backup272291.tar
15G	backup272291.tar

i fear, that problem is not only in this file and not in .tar format. I see some strange in properties of many other files.
Example is in attached screenshoot: Ordinary videofile has 20.6M real size and 164.5M size "on disk".
What is wrong?


Attachment: screen.jpg
Description: JPEG image

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