Solaris eeprom command

eeprom ( Electrically Erasable Programmable Read Only Memory)

Brief description about EEPROM device:
                      It is a non-volatile storage device that cab be rewritten and erased by an electrical charge , one byte at a time whereas RAM or Flash Drives can do that in blocks.EEPROM can store information even when the power is turned off whereas RAM wipes the data.EEPROM is slower that RAM , but is perfectly fine for applications such as storing saved BIOS settings.

Now coming to the eeprom command
eeprom can be used to change the NVRAM parameters while the Solairs OS is running
eeprom comand is located in /usr/sbin/eeprom

[root@] / # eeprom
test-args: data not available.
diag-passes=1
pci-probe-list=c,8,d,5,13
local-mac-address?=false
fcode-debug?=false
silent-mode?=false
scsi-initiator-id=7
oem-logo: data not available.
oem-logo?=false
oem-banner: data not available.
oem-banner?=false
ansi-terminal?=true
screen-#columns=80
screen-#rows=34
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,-
output-device=screen
input-device=keyboard
load-base=16384
auto-boot?=true
boot-command=boot
diag-file: data not available.
diag-device=disk net
boot-file: data not available.
boot-device=disk
use-nvramrc?=false
nvramrc: data not available.
security-mode=none
security-password: data not available.
security-#badlogins=0
diag-script=none
diag-level=max
diag-switch?=false
error-reset-recovery=boot

To list a single parameter you can use eeprom <parameter>

[root@] / # eeprom boot-device

boot-device=disk

To change the value of default boot device to disk2 ,perform the command

eeprom <parameter>=<new-value>

[root@] / # eeprom boot-device=disk2

[root@] / # eeprom boot-device

boot-device=disk2