OK open boot parametrs, OK prompt

OpenBoot Parameters
General	boot	Network	DIAGNOSTICS	input/output
printenv Display all variables and current values. setenv Set variable to the given value. set-default 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-comman d=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	bus	nvram	Security	oem options
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

Useful commands at OK prompt.
Dignostics :	boot	NVRAM
banner this command shows the following systems hardware informatiion : Model, architecture, processor,keyboard, openboot version, Serial no. ethernet address & host id. test floppy - test floppy disk drive test net - test network loopbacks test scsi - test scsi interface test-all test for all devices with selftest 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	nvedit Start nvramrc line editor using a temporary edit buffer use-nvramrc? If this variable is true , Contents of nvramrc is executed automatically. Set using setenv command nvrun Execute the contents of nvedit edit buffer nvstore Save the contents of the nvedit buffer into NVRAM nvrecover Recover nvramrc after a set-defaults nvalias Edit nvramrc to include devalias called 'name' nvunalias Edit nvramrc to remove devalias called 'name'
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.