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bmaptool:tldr:f97f1
This command is using the bmaptool
tool to copy a binary image file to a block device.
Here is a breakdown of the command:
-
bmaptool
: It is an utility tool for interacting with block map (.bmap) files and performs operations like copying binary images to block devices or generating block maps. -
copy
: This is the command to tellbmaptool
to copy an image to a block device. -
--bmap ${blockmap-bmap}
: This option specifies the path to the block map (.bmap) file. The block map file contains metadata about the image, such as block size and mapping information. -
${source-img}
: This is the path to the source binary image file that you want to copy to the block device. -
${-dev-sdb}
: This specifies the target block device where the image should be copied. In this example, it is using/dev/sdb
as the target block device. Note that the actual device name may vary based on your system.
Overall, this command uses bmaptool
to copy a binary image file to a specified block device, utilizing a block map file for efficient copying and verification purposes.