How to Clone a Disk (dd)

1. Make sure the source and destination disks have the same disk geometry.

2. Become superuser.

3. Create the /reconfigure file on the system with the master disk so that it will recognize the clone disk once it is rebooted.

4. Shut down the system.

   # init 0

5. Attach the clone disk to the system.

6. Boot the system.

   ok boot

7. Use the dd command to copy the master disk to the clone disk.

   # dd if=/dev/dsk/device-name of=/dev/dsk/device-name bs=blocksize

   if=/dev/dsk/device-name	Represents the master disk device as the input device.
   of=/dev/dsk/device-name	Represents the clone disk device as the output device.
   bs=blocksize	Block size.

8. Check the new file system.

   # fsck /dev/rdsk/device-name

9. Mount the clone disk's root (/) file system.

   # mount /dev/dsk/device-name /mnt

10. Edit the clone disk's /etc/vfstab to reference the correct device names.

11. Unmount the clone disk's root (/) file system.

    # umount /mnt

12. Shut down the system.

    # init 0

13. Boot from the clone disk to single-user mode.

    # boot diskn -s

14. Unconfigure the clone disk.

    # sys-unconfig

    The system is shut down after it is unconfigured.

15. Boot from the clone disk again and provide its system information, such as host name, time zone, etc.

    # boot diskn

16. Log in as superuser to verify the system information once the system is booted.

    hostname console login:

Example--Cloning a Disk (dd)

# init 0
ok boot
# dd if=/dev/dsk/c0t0d0s2 of=/dev/dsk/c0t2d0s2bs=100k
# fsck /dev/rdsk/c0t2d0s2
# mount /dev/dsk/c0t2d0s2 /mnt 
# cd /mnt/etc
# vi vfstab
(Modify entries for the new disk)
# cd /
# umount /mnt
# init 0
# boot disk2 -s
# sys-unconfig
# boot disk2