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SunPCi User's Guide

OBP (Open Boot PROM) Problems

If you see the following message after installing SunPCi software, your workstation's Open Boot PROM (OBP) may be out of date. 

## Executing postinstall script.
Warning: /etc/devlink.tab not updated correctly
         Perhaps the system OBP needs to be updated

Another way to check if your OBP is out of date is to see if the file /dev/sunpcdrv2 exists on your workstation. If the file does not exist, you will need to update the OBP. If it does exist, your OBP is current.

If your workstation's OBP is out of date, you will need to update it to be compatible with SunPCi. To perform the update, go to the following Web site and download the appropriate instructions for your particular workstation:

http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/pub-Hardware&na

To update your OBP, you will first need to find out the current version of your OBP software, and then update the OBP using the software that corresponds to your workstation type.

To find out your OBP version, follow these steps:

  1. Type the following command at the % prompt (do not type the %): 

    % /usr/sbin/prtconf -V

    You should see a display similar to the following:

OBP 3.11.2 1998/04/20 15:37

In this example, the OBP version is 3.11.2.

  1. Make note of your OBP version.

    You will need this information when you update your OBP. (The README file for the hardware upgrade contains information on the latest OBP revision number for your workstation type.)

  2. Obtain the latest OBP version for your platform.

    You should get the latest OBP from your Service Provider or from the sunsolve.sun.com Web site described earlier in this section. The OBP version required by your workstation depends on the workstation model.

  3. Open the README file for the OBP in any text editor and print it.

    The README file contains detailed and specific instructions on how to update your OBP, including the necessary hardware changes (moving a jumper on your workstation's CPU). It also shows the latest OBP revision number for your workstation type. Because you will have to turn off power to your system in order to move the jumper, you will need a printed copy of the instructions in order to complete the procedure.

    Note –

    You may find it helpful to use a flashlight while moving the jumper.

  4. Follow the update instructions carefully.