On Wed, 7 Nov 2007 20:13:08 -0600, "Erik Anderson" <erikerik at gmail.com> said: > $ dd if=/dev/hda of=/dev/hdb > > This will do a bit-for-bit copy of one drive to the other. This will copy the partition table and file system as is, so you won't be fully utilizing the space on the destination disk. Depending on what you want to do with the destination disk, this may or may not matter. If you want to fully utilize the destination disk, you'll have to use a partition and file system resizing program.