Sun Microsystems SPARCengine Ultra AXi, Technical Manual

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Appendix D OpenBoot Firmware D-9
D.8 Configuration Variables
Configuration variables are used by the OBP code and are stored in NVRAM. The
following is a sample of the output when the
printenv
command is entered at the
ok
prompt. The
setenv
command is used to modify the environment variables
TABLE D-2
NVRAM Configuration Variables
Parameter Default Description
tpe-link-test? true
Twisted Pair Ethernet link test
scsi-initiator-id 7
SCSI bus address of host adapter, range 0-f.
keyboard-click? false
If
true
, enable keyboard click.
keymap no default
Keymap for custom keyboard.
ttyb-rts-dtr-off false
If
true
, OS does not assert DTR and runs on TTYB.
ttyb-ignore-cd true
If true, OS ignores TTYB carrier-detect.
ttya-rts-dtr-off false
If
true
, OS does not assert DTR and runs on TTYA.
ttya-ignore-cd true
If
true
, OS ignores TTYA carrier-detect.
ttyb-mode 9600,8,n,1,-
TTYB (baud, #bits, parity, #stop, handshake).
ttya-mode 9600,8,n,1,-
TTYA (baud, #bits, parity, #stop, handshake).
pcia-probe-list 1,2,3,4
See Para F.12
pcib-probe-list 1,2,3,4
See Para F.12
mfg-mode off
diag-level max
Level of diagnostics to run (
min
or
max
).
#power-cycles
system-board-serial#
system-board-date 34883686
last-poweroff-cause 0,1,2,3 etc.
ASM. See Para F.2.3
env-monitor disabled*
ASM (
enabled-with-fans, enabled, disabled,
disabled*
). See Para F.16
fcode-debug? false
If true, include name fields for plug-in device FCodes.
output-device screen
Console output device (usually
screen
,
ttya
or
ttyb
).
input-device keyboard
Console input device (usually
keyboard
,
ttya
or
ttyb
).
load-base 16384
boot-command boot
Command that is executed if
auto-boot?
is
true
.
auto-boot? true
If
true
, boot automatically after power-on reset.
watchdog-reboot? false
If
true
, reboot after watchdog reset.
diag-file empty string
File from which to boot in diagnostic mode.
diag-device disk net
Device from which to boot.