tldr/pages/common/bmaptool.md

516 B

bmaptool

Create or Copy blockmaps intelligently (and therefore faster than cp or dd).

  • 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}}