Unused blocks - Improving compression

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Dusty

Unused blocks - Improving compression

Post by Dusty » Mon Oct 11, 2004 3:41 am

Ok, just so I have this straight, Partimage is only copying used blocks, so there is no need to write a bunch of zeros in unused partition space? It would have no effect on the Partimage compressed image size?

The /dev/zero trick is typically done with partitions imaged with dd, making the unused space extremely compressable in the resulting dd image.

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