3. Enter /bin/su to become superuser.
Additional information about the superuser command is described in Chapter 2
of the Sun System & Network Manager’s Guide.
4. Enter the superuser password.
5. Enter /usr/sbin/halt (for SunOS 5.x or later versions); enter
/usr/etc/halt (for SunOS 4.1.3).
The system displays system halt messages followed by the prompt ok.
tutorial% /bin/su
Password:
tutorial# /usr/sbin/halt ## (for SunOS 5.x or later versions)
Syncing file systems... done
Halted
ok
6. Turn off the power in this order:
4
External drive unit(s) (if you have any)
4
SPARCstation 10 system unit
4
Monitor
Caution - Make sure your system is shut off. The green LED at the front of the
system unit should not be lit. Do not disconnect the power cord from the system unit
power outlet or the wall socket. This connection provides the ground path necessary
to safely remove and install the printed circuit boards and components.
Halting a System that is Hung
Should your system be hung or unresponsive to commands, perform the following
steps:
1. Press Stop(L1)-a.
The system displays the ok prompt. If the monitor prompt (>) is displayed, go to
step 2; otherwise, go to step3.
30
SPARCstation 10 Service Manual ♦ Revision A, July 1993
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