Date: 03/18/08 (Java Web)    Keywords: linux

In Linux you can use the dd command to copy MBR from one hard disk to another. You can also use dd to backup your master boot record to a different (or same) media. One of the common use of MBR copying is to ensure transparent fail-over in RAID-1 hard-disk array, should one hard-disks [...]

Source: http://blog.taragana.com/index.php/archive/how-to-copy-master-boot-record-mbr-between-hard-disks/