bmaptool

Create or copy block maps intelligently (designed to be faster than cp or dd). More information: https://source.tizen.org/documentation/reference/bmaptool.

bmaptool create -o blockmap.bmap source.img

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

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

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