Maintaining Changes to NVRAM

Some patches or system upgrades may alter the NVRAM or disable the use-nvramrc? environment variable, and could erase the nvram script. For example, the Solaris OE version 7 software includes a firmware patch to enable some older Sun Enterprise Ultra-1 and Ultra-2 servers to use 64-bit addressing. Although using this patch is optional, it will reset the use-nvramrc? environment variable and prevent the nvram script from running. After applying patches or making changes that involve server firmware or the EEPROM, check the value of any non-default OBP variables.

To confirm the nvram variables, run the following UNIX commands:

					eeprom use-nvramrc?
					eeprom nvramrc
					eeprom scsi-initiator-id

As a precaution against errors ...

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