[SunHELP] Setting up v480 term console.
sd_price at yahoo.com
Wed Sep 14 12:00:28 CDT 2005
The V480 does not support a "STOP-N" or "L1-N" as they
used to work on older hardware.
Here's the sunsolve infodoc that explains what you
have to do.
Obviously, you must have physical access to the
hardware for this to work.
Document Audience: SPECTRUM
Document ID: 7047
Title: Resetting NVRAM on a Sun system
Update Date: Tue Sep 13 00:00:00 MDT 2005
Products: Solaris, Sun Blade 2000 Workstation, Sun
Blade 1000 Workstation, Sun Fire 280R Server, Sun
Fire V880 Server, Sun Fire V480 Server, Sun Fire
V890 Server, Sun Fire V490 Server
Technical Areas: NVRAM (Non-Volatile Read-Only
Keyword(s):resetting, nvram, netra 20, sun fire, sun
blade, sun, systems
This document explains how to reset the NVRAM back to
its default settings on a Sun system.
NOTE: Before executing the following, it is important
and highly recommended to note (print out) the current
NVRAM settings before changing these options back to
their default settings.
There are two ways of resetting the NVRAM:
1) At the OK prompt:
ok set-defaults resets
ok set-default 'parameter' resets
that one parameter
for example: ok set-default auto-boot?
2) At boot
This is helpful when an improperly created device
alias for a monitor has been created and no display is
going to the screen.
The most common method is to issue L1+n from the
keyboard (WYSE) while powering on the system. Hold
down this key combination until you see video with a
message stating that the NVRAM parameters have been
set to their default values.
On some Sun keyboards, the "L1" key is replaced with a
"STOP" key. Therefore, issue the key sequence STOP+n
simultaneously from the keyboard while powering on the
system. Hold down this key combination until you see
video with a message
stating that the NVRAM parameters have been set to
their default values.
Newer systems (Sun Blade[TM] workstations and Sun
Fire[TM] hardware) are using USB Keyboards and Mice.
Unlike the older 8 pin mini-din keyboards, these
systems do not have a "STOP+N" key sequence to reset
the OBP/NVRAM parameters. Instead, a "safe NVRAM" boot
mode is available. Remember that unlike a STOP+N which
restores ALL factory NVRAM parameters, the "safe
NVRAM" boot only alters a few parameters and only for
that one boot cycle. The described work around allows
booting any USB keyboard type system, including RSC
equipped servers, to the OK prompt and communicating
with these systems via the serial ttya console.
Note: For security reasons this procedure does not
reset the settings for security-mode and
security-password. The information from this Infodoc
used to recover from a lost OBP password. Please
contact Sun Service to get a replacement NVRAM in such
==================== Procedure ====================
1. Press the power button to power up the system.
2. Once the maintenance LED starts to flash rapidly,
immediately press the Power button twice (similar to
double-clicking a mouse, but leave a short gap of
around 1 second between presses, to have the action
reliably registered.) The actual time when you do the
double press of the power button is the point in
POST when the maintenance LED (wrench light) rapidly
If you double press too late or too soon, the system
will power off. Do not get confused with the earlier
occurrences of the maintenance and OK to remove LEDs
flashing together. This is a part of the system test
to make sure the LEDs are functional.
If you're running POST even in MIN level, it will be
several minutes depending upon your configuration,
before the maintenance LED flashes rapidly.
A screen similar to the following is displayed to
indicate that you have successfully reset the OpenBoot
NVRAM configuration variables to their default values:
Sun Fire xxx (8 X UltraSPARC-III), Keyboard Present
OpenBoot x.x, 256 MB memory installed, Serial
Ethernet address xx:xx:xx:xx:xx:xx, Host ID:
Safe NVRAM mode, the following nvram configuration
variables have been overridden:
diag-switch? is true
use-nvramrc? is false
input-device , output-device are defaulted
ttya-mode , ttyb-mode are defaulted
These changes are temporary and the original values
will be restored after the next hardware or software
reset. Once you are at the OK prompt, it is at this
point you make your changes to the OBP parameters, or
use set-defaults to reset all parameters to factory
On the Netra[TM] 20 server, the defaults cannot be set
by hitting the power button twice. The power button
does not function in the same way as it does on
the Sun Fire or Sun Blade. The LOM command bootmode
will need to be used as shown below:
lom> bootmode reset_nvram
This will reset the nvram to default values.
If the RSC card is your console device, resetting the
NVRAM will take the console away from the RSC and put
it back to the default (example, input-device ttya).
So the system will need a console device attached to
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