Chapter 6 Power Off and On 6-3
3. Monitor
6.1.2 Powering Off When the System Does Not
Respond Normally
To halt a system that is hung, or frozen, and unresponsive to commands:
1. If your system is on a network, wait a few minutes before proceeding.
Your system’s slow response may be due to network problems or delays. Check with
the person in charge of your network. If the response is not due to the network, go
to the next step.
2. Press Stop-a (or Break).
If you use a Wyse® WY-50™, VT100™, or compatible terminal as the console with
your SPARCstation system unit, press Break instead of Stop-a.
Note – If the system does not respond to the mouse and keyboard, pressing Stop-a
will not be effective. You may have to turn the power off, wait at least 10 seconds,
and turn the power on again. Then try pressing Stop-a once more.
Note – Steps 3 through 6 are not necessary for the SPARCclassic X terminal.
When the ok or > prompt appears, boot the operating system.
Enter
boot at the ok prompt or b at the > prompt.
3. When you see the login prompt, log in to the system with your user name and
password.
4. Halt the operating system.
See the documentation supplied with your operating system for instructions on how
to halt it.
For example, if you are using the Solaris 2.x operating system:
1. At the system prompt, type
su and press Return.
2. Type your superuser password and press Return.
3. Type
/usr/sbin/init 0 and press Return.
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