f=$1
eblocks=$((`stat --printf "%s\n" $f` / (128*1024)))
for b in $(seq 0 $(($eblocks - 1))); do
- sha=$(dd status=noxfer bs=128KiB skip=$b count=1 if=$f | sha256sum | cut -d- -f1)
+ sha=$(dd status=noxfer bs=128KiB skip=$b count=1 if=$f 2>/dev/null | sha256sum | cut -d- -f1)
echo "eblock: `printf '%x' $b` sha256 $sha" >> ${IMG_NAME}
done
}