[sf-lug] use dd for backups question

jim stockford jim at well.com
Mon Nov 19 21:13:59 PST 2007

    imagine a machine with two hard disks, both
with identical geometries (same make, same
    one is a dual boot disk with both windows and
some linux distro as the first scsi drive.
    the other is blank in the second scsi position.

    imagine booting the box from a live CD and
using the dd command to copy absolutely
everything from the bootable disk to the blank
disk. something like
# dd if=/dev/sda of=/dev/sdb bs=512

    imagine powering off the box.

    imagine pulling out the first scsi drive and
replacing it with the second scsi drive.

    imagine powering on the box, and please let
me know what you imagine happens (I imagine
that the box comes up as usual: would it?).

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