ASSEMBLY

dd utility explained examples

$ sudo dd if=/dev/sda bs=512 count=1 of=mbr.img

dd utility explained examples

1+0 records in
1+0 records out
512 bytes copied, 0.000657177 s, 779 kB/s

dd utility explained examples

$ sudo dd if=/dev/sda of=hidden-data-after-mbr count=2047 skip=1

dd utility explained examples

$ sudo dd if=hidden-data-after-mbr of=/dev/sda seek=1

dd utility explained examples

$ sudo dd if=/dev/sda bs=1M | gzip -c -9 > sda.dd.gz

dd utility explained examples

$ sudo dd if=/dev/zero bs=1M of=/dev/sda

dd utility explained examples

$ sudo dd if=/dev/urandom bs=1M of=/dev/sda