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

1. Boot the system to run level S by using the boot -s command.

   ok boot -s

2. Enter 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. Use the who -r command to verify that the system is at run level S.

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

4. To bring the system up to multiuser state after the system maintenance task is performed, press Control-d.

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

The following example displays a system booted to run level S.

ok boot -s
.
.
.
SunOS Release 5.7 Version [UNIX(R) System V Release 4.0]
Copyright (c) 1983-1998, Sun Microsystems, Inc.
configuring network interfaces: le0.
Hostname: mars
INIT: SINGLE USER MODE
Type Ctrl-d to proceed with normal startup,
(or give root password for system maintenance): xxx
Sun Microsystems Inc.   SunOS 5.7 August 1998
# who -r
  .       run-level S  Jun 10 15:34     S      0  ?
(Perform some maintenance task)
# Press <Control-d>