apt-get install bmap-tools

# FIXME
# create function for ''bmap-tool create' that fixes the zfs_dmu_offset_next_sync issue

#function bmapcreate() {
#	echo 1 | sudo tee -a /sys/module/zfs/parameters/zfs_dmu_offset_next_sync
# 
#       BMAPFILE=$1
#       IMAGE=$2
## test the extension to see if we need to decompress before creating the bmap
#       if [ ${IMAGE:e} = 'xz']
#	bmaptool create --output mobian-pinephone-20200905.img.bmap mobian-pinephone-20200905.img     
#	bmaptool create --output $BMAPFILE $IMAGE    
# 
#	echo 0 | sudo tee -a /sys/module/zfs/parameters/zfs_dmu_offset_next_sync
#}


#function bmapcopy() {
#	bmaptool copy --bmap $BMAPFILE $IMAGE $BLOCKDEVICE
#}