[sf-lug] use dd to copy the mbr

jim stockford jim at well.com
Mon Nov 19 21:07:59 PST 2007


# dd if=/boot/mbr_backup of=/dev/sda bs=446 count=1
# # their example above

# # or, copy from the primary master to primary slave:
# dd if=/dev/hda of=/dev/hdb bs=446 count=1

note the bs=446 rather than bs=512 lets you copy the
bootstrap loader code without copying the partition table
(if you use bs=512 you copy the partition table from the
source and overwrite that of the target).

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