Hi,
Thanks you all for the comments, which make it obligatory for me to
explain more. First, why I asked:
$ man tar | grep -i sparse
-S, --sparse
handle sparse files efficiently
--sparse-version=MAJOR[.MINOR]
set version of the sparse format to use (implies --sparse)
On Wed, 22 Sep 2010 22:59:38 +0200, Sven Joachim wrote:
>> I created a Linux system tar ball without using the --sparse switch.
>> The .tar.bzip2 tar ball is only of 1.5G in size. However, restoring
>> such tar ball into a 10G partition would fail:
>>
>> Cannot write: No space left on device
>>
>> . . .
>
> The GNU tar documentation says this about the --sparse option:
>
> This option is meaningful only when creating or updating archives.
> It has no effect on extraction.
I think this explains well.
IIRC, the source is only around 3G, at most 5G, according to du output.
But it turns out I need over 15G of space to expand this 1.5G tar ball.
Sparse files are the reason.
cheers
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