On 4 January 2012 02:15, Srija <swap_proj...@yahoo.com> wrote: > Hi, > > If the file contains the sparse bits then can anybody guide me , how to > remove those ? For example > when I am checking file.img [ as below] , it's size is 38G. Basically > it's size is 93G because of the sparse. > > You mean you want to fill in the holes?
The easy way to do this, assuming you have the disk space, is with "cp --sparse=never file.img newfile.img; mv newfile.img file.img". You can also just re-write the file in place using perl/python/C/whatever but that's slightly risky because if you run out of disk space part way through you'll probably trash the file and lose whatever data you have. If this is a virtual machine image then you can fill in the sparse blocks by creating a very large file in the guest (cp /dev/zero /tmp/huge; rm /tmp/huge) although this won't necessarily fill all the sparse blocks (it won't touch swap, for example). Why do you think you need to make the file non-sparse? jch
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