C H A P T E R  4

Troubleshooting and Technical Support

This chapter contains information to help you troubleshoot minor workstation problems.

This chapter includes information about the following topics:


Troubleshooting the Sun Blade 2500 Workstation

If you experience problems while setting up your workstation, refer to the troubleshooting information in TABLE 4-1.

TABLE 4-1 Troubleshooting Procedures

Symptom

Troubleshooting

Workstation powers on, but the monitor does not.

  1. Is the Power button for the monitor turned on?
  2. Is the monitor power cord connected to a wall outlet?
  3. Does the wall outlet have power? Test by plugging in another device.

System stops booting after the ok prompt is displayed.

At the ok prompt type: boot

If the system does not boot, contact your system administrator or a Sun Service Support Center.

CD or DVD does not eject from the media tray when you press the Eject button.

User-Level Procedures

  1. Move the mouse or press any key on the keyboard. The drive might be in low-power mode.
  2. Attempt to eject the CD using the Eject button on the media drive.
  3. In a terminal window type: eject cdrom
  4. If Step 3 does not work, verify that the CD is not mounted. In a terminal window, type: df | grep cdrom
    If the CD is mounted, text similar to this example will be displayed:
    /cdrom/wzi-2230 (/vol/dev/dsk/c0t2d0/wzi-2230): 0 blocks 0 files
  5. Unmount the CD by typing: umount and the command output shown in parentheses above. In the example above, the mount point is wzi-2230 and you would type: umount /vol/dev/dsk/c0t2d0/wzi-2230
  6. Type the command: eject cdrom

 

Alternate Procedure for Media CDs

  1. Right-click the mouse and select Workspace Menuright arrowFoldersright arrowOpen CDROM.
    A File Manager window should open.
  2. Select Fileright arrowEject.
  3. If the CD does not eject, use a terminal window to exit the CD directory by typing: cd
  4. Try again to eject the CD from the File Manager window.
    If you need further assistance, contact your system administrator or a Sun Service Support Center.

 

System Administrator Emergency Procedures for All CDs

As superuser, stop the vold daemon:

  1. Open a terminal window.
  2. As superuser, type: /etc/init.d/volmgt stop
  3. Press the Eject button on the media player.

Note: To mount another CD, you need to start vold by typing:
/etc/init.d/volmgt start

 

If the CD has not ejected using Step 3 above, complete these steps:

  1. Bring the system to the ok prompt.
  2. Press the Eject button.

If the CD still does not eject using the two processes above, there might be a cable problem or other hardware problem. Call a Sun Service Support Center for further assistance.

No video displays on the monitor screen.

  1. Is the monitor cable attached to the graphics accelerator?
  2. Does the monitor work when connected to another system?
  3. If you have another monitor, does it work when connected to the original system?
  4. Verify that OpenBoottrademark PROM defaults are set properly:
  5. Press and hold the Power button for 4 seconds to power off the system.
  6. Wait 4 seconds and power on the system.
  7. As soon as the Power button blinks, quickly press the Power button twice. The ok prompt is displayed and the system enters a safe NVRAM mode.
  8. Verify these OpenBoot PROM parameters: output-device is set to screen and input-device is set to keyboard.
  9. If the ok prompt does not display, or if changing the output-device setting does not help, contact a Sun Service Support Center.

Workstation does not power on when the front panel Power button is pressed.

Keep notes on the following situations in case you need to call service:

  1. Is the Power button LED illuminated on the front of the system?
    (Ensure that the power cord is connected to the system and to a grounded power receptacle.)
  2. Does the wall outlet have power? Test by plugging in another device.
  3. Does the system beep when the system is powered on? (Ensure that the keyboard is plugged in.)
  4. Test with another keyboard that you know is functional. Does the system beep when you connect the keyboard and power on the system?
  5. Does the monitor sync within 5 minutes after power on? (The green LED on the monitor stops flashing and remains illuminated.)

Note: If the monitor syncs but does not display an ok prompt or a login window, the system might not be passing POST. Call a Sun Service Support Center.
If the system passes POST and displays the ok prompt but does not boot Solaris,
type: boot

Keyboard or mouse does not respond to actions.

  1. Verify that the mouse and keyboard cables are connected to the on-board USB 1.1 connectors on the workstation. (Do not connect the mouse and keyboard to the USB connectors on the IEEE 1394 and USB 2.x card.)
  2. Verify that the workstation is powered on and the front Power button LED is illuminated.

Workstation appears to be in low-power mode, but the Power button LED does not blink.

The power-indicator LED only blinks when all workstation components are in low-power mode. A tape drive might be connected to your workstation. Because tape drives do not enter low-power mode, the power-indicator LED does not blink.

Hung application. Application won't respond.

Procedure 1: Using the Host Workstation

  1. From the CDE toolbar, select Toolsright arrowProcess.
  2. In the Process Manager window, select Find Process.
  3. Select the process that is hung. The name of the application or process is in the Command column.
  4. From the Process Manager menu, select Processright arrowKill Process.

Note: You may be able to log in from another workstation and use these same GUI tools to save and close, or kill applications.

 

Procedure 2: Using a Terminal Window From Your Own Workstation

  1. To determine the ID number of the hung process, type: ps -ef | grep process name

Note: First kill the last application you used when the system hung and, if necessary, kill the next most recent applications that you used.

  1. To stop the process, type: kill -9 process ID

 

Procedure 3: Using Remote Login or Telnet

  1. From another workstation, use a terminal window and type either:
    rlogin hostname
    or type: telnet hostname
  2. Type your login ID and password.
  3. From the terminal window, type: ps -ef | grep process name
  4. Start killing processes. Type the name of the last application you were using when the system froze.
    Type: kill -9 process ID
    After killing the processes for the last-used application, look at your system to see if it is usable. If not, continue to kill processes until the system is usable or until you can shut it down and restart it.

CAUTION: Be sure to log off from the remote system. Another user might be able to access your system if you do not exit the terminal window.

  1. On the second workstation, type exit and close the terminal window.

During the boot procedure, the system displays a network error message.

Use this procedure if the system displays these error messages:

Warning: timed out waiting for NIS to come up
:Timeout waiting for ARP/RARP packet

  1. From a remote system, ping the system with this command: ping hostname
  2. Verify with your system administrator that the network is operational.
  3. Is the Ethernet cable connected between the workstation and the wall outlet or router?
  4. Try connecting another Ethernet cable. Does the new cable work?
  5. If cable changes do not help, bring the system to the ok prompt and verify the OpenBoot PROM settings. Most systems should be set to diag-switch? = false and boot-device set to disk net. For more information on OpenBoot PROM settings, see the Sun Blade 2500 Service, Diagnostics, and Troubleshooting Manual, 816-0996, or contact a Sun Service Support Center.

Hung or frozen workstation: No response from mouse or keyboard or any application.

  1. Try to access your system from a different workstation on the network.
  2. From a terminal window type: ping hostname
  3. If no response, remotely log in from another system using telnet or rlogin, and ping the system again.
  4. Attempt to kill processes until the system responds. (See the procedures for "Hung Application" in this table.)

 

If the above procedures do not work:

Caution: Only experienced system administrators should use a "Stop" command. Using any "Stop" command might cause loss of core dumps, which makes it difficult to diagnose system problems.

  1. Press Stop-A. If the system responds, the system displays the ok prompt.
  2. Try to force a core file dump. At the ok prompt, type this command: sync

Note: The default location for a core file deposit is: /var/crash/hostname

  1. The Sun Service Support Center might request the core file for root cause analysis.

 

If the above procedures do not work:

  1. Press the Power button to power off the system.
  2. Wait 20 to 30 seconds and power on the system.

Note: When you power on the system again, you might need to run fsck to repair damaged links. If the system still does not function properly, contact Sun Service Support.

For more troubleshooting information see the Sun Blade 2500 Service, Diagnostics, and Troubleshooting Manual (816-0996).



How to Get Technical Assistance

TABLE 4-2 Sun Web Sites and Telephone Numbers

Sun Blade 2500 Workstation Documents and Support Resources

URL or Telephone Number

PDF files for all the current Sun Blade 2500 Documents. Key documents include:

Sun Blade 2500 Service, Diagnostics, and Troubleshooting Manual, 816-0996
Sun Blade 2500 Getting Started Guide, 816-1005
Sun Blade 2500 Product Notes, 816-1001

http://www.sun.com/documentation/
Select the links:
Desktops & Workstationsright arrowSun Blade Workstations.
Select the Sun Blade 2500 link.

Find Solaris and other software documents here. This is also an alternative web site for some Sun Blade 2500 workstation documents. This web site has full search capabilities.

http://docs.sun.com/

 

Find Solaris on Sun Hardware documentation here.

http://www.sun.com/documentation/
Select the links:
Hardware Product Categoriesright arrowSoftwareright arrowSolaris on Sun Hardware.

Warranty and Contract Support contacts. Links to other service tools.

http://www.sun.com/service/online/

Discussion and Troubleshooting Forums.

http://supportforum.sun.com/

Support, Diagnostic Tools, Alerts, for all Sun products.

http://www.sun.com/bigadmin/

SunSolvetrademark: Contains links to software patches. Lists some system specifications, troubleshooting and maintenance information, and other tools.

http://www.sunsolve.sun.com/handbook_pub/

Warranties for every Sun product.

http://www.sun.com/service/support/warranty/

Sun Service Support Phone Numbers.

1-800-872-4786 (1-800-USA-4Sun) Select Option 1

This web site lists international telephone numbers for Sun Service Support.

http://www.sun.com/service/contacting/solution.html