You must have the console role (c) to complete this task.
Specify run level 0 to shut down the OS and display the OpenBoot prompt. The following example is from the SPARC M7-8 server.
# init 0 # svc.startd: The system is coming down. Please wait. svc.startd: 136 system services are now being stopped. syncing file systems... done Program terminated NOTICE: Entering OpenBoot. NOTICE: Fetching Guest MD from HV. NOTICE: Starting additional cpus. NOTICE: Initializing LDC services. NOTICE: Probing PCI devices. NOTICE: Finished PCI probing. SPARC M7-8, No Keyboard Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved. OpenBoot 4.37.3, 509.5000 GB memory available, Serial #105357064. Ethernet address 0:10:e0:47:9f:14, Host ID: 12345f01. {0} ok