Powering Off When The System Does Not Respond Normally - Sun Microsystems SPARCclassic Service Manual

7. Turn off the power to the system components in this order:
1. External drive units (if you have any)
2. System unit
3. Monitor
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
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.
For example, to halt the system immediately type:
TM TM
WY-50 TM , VT100 TM , or compatible terminal as the console
47
Power Off and On