Sun Microsystems Solaris 7 11/99, Руководство по аппаратной платформе

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Chapter 4 Updating the Flash PROM on the Ultra 1, Ultra 2, Ultra 450, and Sun Enterprise 450 Systems 75
3. Reset the configuration variables default value to the current value (see the values
you captured with the
eeprom
command in “To Capture the Configuration
Variable Settings” on page 62 and the values you wrote down earlier in this
procedure in Step 1). At the
ok
prompt, type the following for each configuration
variable:
For example:
The
setenv
command resets each configuration variable you entered to the current
value.
4. If the OpenBoot
diag-switch?
variable was set to
true
(
false
is the default).
and the system is power cycled, diagnostics will run. Also, when you boot the
system, the system will attempt to boot from the network. Unless you had
diag-
switch?
set to true before the flash PROM update, set
diag-switch?
to
false
,
the default value:
5. If the
use-nvramrc?
configuration variable was set to true before the flash
PROM update, as part of the update the
use-nvramrc?
variable was set to false
because the contents of the NVRAM configuration variable
nvramrc
may or may
not be appropriate for use with the new firmware. If you want to change the
use-
nvramrc?
variable back to true, evaluate the contents of
nvramrc
first with
printenv nvramrc
then change the
use-nvramrc?
configuration variable back
to true with the
setenv use-nvramrc? true
command.
6. Make sure that other configuration variables are set properly.
a. Use the
printenv
OpenBoot command to display the NVRAM configuration
variables and their settings.
b. At the PROM monitor’s
ok
prompt, you can use OpenBoot commands to restore
the values of the configuration variables. Refer to the OpenBoot 3.x Command
Reference Manual. You can also use the
eeprom
utility as superuser in the
Solaris operating environment. See the
eeprom
man page description for more
information.
ok setenv
variablename currentvalue
ok setenv auto-boot? false
ok setenv diag-switch? false