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bmaptool

Create or copy block maps intelligently (designed to be faster than `cp` or `dd`).

More information.

Create a blockmap from image file:

bmaptool create -o {blockmap.bmap} {source.img}

Copy an image file into sdb:

bmaptool copy --bmap {blockmap.bmap} {source.img} {/dev/sdb}

Copy a compressed image file into sdb:

bmaptool copy --bmap {blockmap.bmap} {source.img.gz} {/dev/sdb}

Copy an image file into sdb without using a blockmap:

bmaptool copy --nobmap {source.img} {/dev/sdb}

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