SPARC: How to Boot a System to Run Level S (Single-User Level)

Use this procedure to boot a system that is currently at run level 0 to run level S.

1. Boot the system to run level S.

   ok boot -s

2. Type the superuser password when the following message is displayed.

   INIT: SINGLE USER MODE Type Ctrl-d to proceed with normal startup, (or give root password for system maintenance): xxx

3. Verify that the system is at run level S.

   # who -r . run-level S Jun 10 15:27 3 0

4. To bring the system up to multiuser state after you completed the system maintenance task, press Control-D.

SPARC: Example—Booting a System to Run Level S (Single-User Level)

The following example displays the messages from booting a system to run level S.

ok boot -s
.
.
.
SunOS Release 5.9 Version Generic 64-bit
Copyright (c) 1983-2002 by Sun Microsystems, Inc.
configuring IPv4 interfaces: le0.
Hostname: earth

INIT: SINGLE USER MODE

Type control-d to proceed with normal startup,
(or give root password for system maintenance): xxx
Sun Microsystems Inc.   SunOS 5.9  Generic May 2002
# who -r
   .       run-level S  Jul 14 11:37     3      0  ?
(Perform some maintenance task)
# Press Control-D