printenv

Display all variables and current
values.

setenv <variable>  

Set variable to the given  
value.

set-default  <variable>  

Reset the value of variable
to the factory default.

set-defaults  

Reset variable values to the factory
defaults.

auto-boot?=true  

System directly boots without
stopping at OK> after power on.

boot-command=boot
command passed on to auto boot if true. 

boot-file:  
File  for booting  Solaris , default is empty string .This
variable contains the default boot arguments that are used when
OpenBoot is not in diagnostic mode.

boot-device=disk net  

Device
to boot from , multiple devices can be specified using spaces .Other
devices will be selected if  first device fails.

tpe-link-test?

=true

Tests the UTP  Ethernet port
link and flashes error messages if there is no network  link.

local-mac-address?

=false

Use the system’s  MAC address
instead of network card’s MAC address . 

Ports

ttyb-rts-dtr-off

=false
ttyb-ignore-cd

=true
ttya-rts-dtr-off

=false
ttya-ignore-cd

=true
ttyb-mode

=9600,8,n,1,-
ttya-mode

=9600,8,n,1,- 

diag-file:

boot file for diagnostic mode This
variable contains the default diagnostic mode boot arguments.
diag-device=net

booting device in diagnostic mode.

diag-switch?=false

If true system runs in diagnostic
mode.

diag-level=max
Level for diagnostics information , can 

be  min , max and minus . There
may be additional platform specific values. If set to off, POST is
not called. The default value is platform-dependent.

input-device=keyboard

Input device used at power-on ( 
keyboard, ttya, or  ttyb).  

keyboard-click?=false

keyboard click sound

keymap:  

For custom keyboards

output-device=screen

Output device used at power-on
(screen,
ttya, or ttyb).
ansi-terminal?=true

controls  the behavior of the
terminal emulator.
The value false causes  the terminal emulator to  stop
interpreting ANSI escape sequences resulting in  echoing them
to the output device. 
screen-#columns=80
screen-#rows=34

Columns and Rows of display screen.

scsi-initiator-id=7

SCSI bus address of host adapter,
range 0-7. Used  in shared scsi storage envornment.

pcia-probe-list=1,2,3,4
pcib-probe-list=1,2,3

sbus-probe-list=2,0,1,3

Order to probe pci and sbus 
buses for devices.

use-nvramrc?=false

If true , execute commands in
NVRAMRC during sys-
tem start-up. Defaults to false .
nvramrc

Displays contents of NVRAM

security-mode=none

Firmware security level (options:
none, command ,
or full). If set to command or full, system will prompt for PROM
security password. 
  

Security password setting when
security mode is command or full.
security-#badlogins=0

No. of bad security login .

password Set 
security-password

oem-logo=false
oem-logo?=false
oem-banner?=false

mfg-mode=off

banner 

this command shows the following 
systems hardware information : Model, architecture, processor, keyboard, openboot
version, Serial no. Ethernet  address & host id.
test floppy – test floppy disk drive
test net - test network loop backs
test scsi – test scsi interface
test-all    test for all devices with self test
method
watch-clock  

Show ticks of real-time clock
watch-net

Monitor network broadcast packets
watch-net-all

Monitor broadcast packets on all net
interfaces
probe-scsi

Show attached SCSI devices

probe-scsi-all 

Show attached SCSI devices for all
host adapters- internal & external.

boot – boot kernel from default
device.
Factory default is to boot
from DISK if present, otherwise from NET.
boot net – boot kernel from network
boot cdrom – boot kernel from CD-ROM
boot disk1:h - boot from disk1 partition h
boot tape – boot default file from tape
boot
disk myunix -as – boot myunix from disk with
flags "-as"

DEVALIAS

ok>show-devs

ok cd /pci@1f,4000/scsi@3 

ok .properties

ok ls

f00809d8 tape

f007ecdc disk

ok .speed

CPU Speed : 200.00MHz

UPA Speed : 100.00MHz 

PCI Bus A : 66Mhz

PCI Bus B : 33Mhz

Key Sequences

These commands are disabled if the PROM security is on. Also, if
your system has full security enabled, you cannot apply any of the
suggested commands unless you have the password to get to the ok
prompt.

Stop – Bypass POST. This command does not depend on
security-mode. (Note: some systems bypass POST as a default; in
such cases, use Stop-D to
start POST.)

Stop-A 
Abort.

Stop-D -
Enter diagnostic mode (set diag-switch? to true).

Stop-F -
Enter Forth on TTYA instead of probing. Use exit to
continue with the initialization sequence. Useful if hardware is
broken.

Stop-N 
Reset NVRAM contents to default values.