Sun Microsystems Ultra 450 Manual page 11

3. Enter the following command to perform a reconfiguration boot:
ok boot -r
This command rebuilds the device trees for the system, incorporating any newly
installed options. After a device has been added to a device tree, it can be
recognized by the system. After the reconfiguration reboot has successfully
completed, the system prompt is displayed.
Configuring Disk Slot Associations
3