In order to backup only the first few bytes of your hard drive that contains the MBR and the partition table you can use dd as well.
dd if=/dev/adx of=/path/to/image count=1 bs=512
To restore those bytes:
dd if=/path/to/image of=/dev/adx
In order to backup only the first few bytes of your hard drive that contains the MBR and the partition table you can use dd as well.
dd if=/dev/adx of=/path/to/image count=1 bs=512
To restore those bytes:
dd if=/path/to/image of=/dev/adx