Are you replacing an old SunATM SBus adapter?

1. If you are replacing an old SunATM/S 155 adapter with a new adapter, you must edit the /etc/path_to_inst file to remove the old device instance.

   The SunATM/S 155 adapter originally shipped with an FCode name of "ba" (part numbers 501-2794-07, 501-2795-05, and prior versions). Since then, Sun Microsystems, Inc. has changed the naming convention to include SUNW at the beginning of every device name. When a third-party adapter was found, which also used the name property "ba", the SunATM/S 155 adapter was updated to use the "SUNW,ba" name property instead (the change was made to part numbers 501-2794-08, 501-2795-06, and compatible versions).

As a result, when an older SunATM/S 155 adapter (with the "ba" name property) is replaced by a newer SunATM/S 155 adapter (with the "SUNW,ba" name property), the system does not recognize the new adapter as a replacement. Instead, the system sees it as a new interface and assigns a new instance number to the adapter. The /etc/path_to_inst file is created by the Solaris operating environment to identify installed devices and their instance numbers. When a SunATM/S 155 adapter (with the "ba" name) is installed in a system, /etc/path_to_inst has an entry, similar to the following, to identify it as ba0:

"/sbus@1f,0/ba@0,0" 0 "ba"

When a replacement adapter (with the "SUNW,ba" name) is installed into the same location and the system is rebooted, it treated as a new device and a new entry in /etc/path_to_inst is created for ba1:

"/sbus@1f,0/SUNW,ba@0,0" 1 "ba"

To correct this, delete the original entry that contains the "ba" name. Then, modify the second field of the new entry, which contains the name "SUNW,ba", to reflect the proper instance number. In this example, the new entry is designated as instance 0:

"/sbus@1f,0/SUNW,ba@0,0" 0 "ba"

After you have modified and saved /etc/path_to_inst, reboot the system for the changes to take effect.

The physical name listed in /etc/path_to_inst varies from one architecture to another and might not match the previous examples exactly. However, modify only the instance number field. Be sure to leave all other fields as they are.