Sun Microsystems Sun Blade 100, Руководство по обслуживанию

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Chapter 10 OpenBoot Emergency Procedures 10-7
Some NVRAM configuration parameters are reset to their defaults. They include
parameters that are more likely to cause problems, such as TTYA settings. These
NVRAM settings are only reset to their defaults for this power cycle. If you do
nothing other than resetting the system at this point, the values are not permanently
changed. Only settings that you change manually at this point become permanent.
All other customized NVRAM settings are retained.
Typing
set-defaults
discards any customized NVRAM values and permanently
restores the default settings for all NVRAM configuration parameters.
Note – Once the power-indicator LED stops blinking and stays lit, pressing the
power switch again will power off the system.
10.2.3 Stop-F Functionality
The Stop-F functionality is not available in systems with USB keyboards.
10.2.4 Stop-D Functionality
The Stop-D (diags) key sequence is not supported on systems with USB keyboards.
However, the Stop-D functionality can be closely emulated by using the power
button double-tap (see Section 10.2.2 “Stop-N Equivalent Functionality” on
page 10-6), since this temporarily sets
diag-switch?
to
true
. If you want to turn
on the diagnostic mode permanently, type:
ok setenv diag-switch? true