sparse when creating backup

[jls]

is it possible to create a backup (mydata.tar.gz) with the sparse option file.
For example mldonkey create a file when u start a download but the file created isn't in real big as when is finished.
Infact if I want to move the mldonkey temp dir I should use

Code: [Select]

rsync -avS SOURCE DEST


[curaga]

Busybox tar doesn't support the -S option. Things should work with GNU tar, but might need a remaster.