Sun Microsystems Fire 880, Руководство пользователя

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Chapter 6 Configuring System Firmware 129
To control which reset events, if any, automatically initiate firmware diagnostics, the
OpenBoot firmware provides a NVRAM variable called
diag-trigger
. The
diag-trigger
variable, and its various settings are described in the following
table.
Note – The
diag-trigger
variable has no effect unless
diag-switch?
is set to
true
.
In the following example, the
diag-switch?
and
diag-trigger
variables are
used to trigger POST and OpenBoot Diagnostics on all reset events.
ASR User Commands
The OpenBoot commands
.asr
,
asr-disable
, and
asr-enable
are available for
obtaining ASR status information and for manually deconfiguring or reconfiguring
system devices. For more information, see:
■
“How to Deconfigure a Device Manually” on page 132
■
“How to Reconfigure a Device Manually” on page 134
■
“How to Obtain ASR Status Information” on page 136
Setting Function
power-reset
(default)
Runs firmware diagnostics only on power-on resets, including
RSC-initiated power on resets.
error-reset
Runs firmware diagnostics only on power-on resets and resets
triggered by hardware errors, including operating system panics,
and watchdog reset events.
soft-reset
(recommended)
Runs firmware diagnostics on all reset events.
none
Disables the automatic triggering of firmware diagnostics by any
reset event. You can still invoke firmware diagnostics manually by
turning the front panel keyswitch to the Diagnostics position prior to
powering on the system.
ok setenv diag-switch? true
ok setenv diag-trigger soft-reset