Sun Microsystems Sun Blade 100, Руководство по обслуживанию

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3-4 Sun Blade 100 Service Manual • October 2000
3. Observe the monitor to verify that POST is executing.
4. When the POST is complete, type the following at the system prompt:
3.4 Maximum and Minimum POST Levels
Two levels of POST are available: maximum (
max
) level and minimum (
min
) level.
The system initiates the selected level of POST based upon the setting of
diag-level
, an NVRAM variable. The default setting for
diag-level
is
max
.
To set the
diag-level
variable to
min
before power-cycling the system, type:
To return to the default setting:
An example of a
max
-level POST output at the serial port is provided in Section 3.4.1
“diag-level Variable Set to max” on page 3-4. An example of a
min
-level POST
output at the serial port is provided in Section 3.4.2 “diag-level Variable Set to min”
on page 3-7.
3.4.1
diag-level
Variable Set to
max
When you set the
diag-level
variable to
max
, POST enables an extended set of
diagnostic-level tests. This mode requires approximately two minutes to complete
(with 128 Mbytes of DIMM installed).
CODE EXAMPLE 3-1
shows a typical serial port
POST output with
diag-level
set to
max
and a single 512 Mbyte DIMM installed.
Note – Video output is disabled while POST is initialized.
ok% setenv diag-switch? false
ok% setenv diag-level min
ok% setenv diag-level max