Sun Microsystems Solaris 7 11/99 Hardware Platform Manual page 98

After installing the Solaris 7 operating environment, make sure that the external
front panel keyswitch is set to the On or Diagnostics position.
Take note of screen messages, during the flash PROM update, that report
configuration variables that may be reset to their default values. When the update is
complete and after you either reset the system or power cycle the system, revise the
configuration variables as needed to restore your preferences.
Refer to the recovery procedure covered later in this chapter if there is a power
interruption during the update process.
When your system has been updated to the proper firmware revision, you can run
Solaris 7 software in 64-bit mode.
Capturing Configuration Variable Settings
While the Solaris operating environment is still running, capture the NVRAM
configuration variable settings before you install the Solaris 7 operating environment
or begin the flash PROM update process.
As part of the flash PROM update, your NVRAM configuration variables might
change to the default values. To ensure that you can change the default values back
to the values you customized, you need to save the current state of the NVRAM
configuration variables using the eeprom command.
To Capture the Configuration Variable Settings
1. Using the eeprom utility, capture the system's configuration variable settings in a
file. Type eeprom > filename. The filename is any file name you choose.
% eeprom > filename
Note – If you have custom values installed in oem-logo or keymap, those values
cannot be displayed or printed properly by the eeprom utility because the contents
contain binary information. If it is necessary to restore these values after a power
loss, you should determine the original method by which these values were placed
into NVRAM and use that method to restore the values.
86 Solaris 7 11/99 Sun Hardware Platform Guide • November 1999