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C H A P T E R  6
Using OpenBoot PROM Features That Support RSC

This chapter contains information about OpenBoot PROM features that support Sun Remote System Control (RSC) software.

OpenBoot PROM Commands

Several OpenBoot PROM commands have been added to support RSC. You enter these commands at the ok prompt.

diag-console rsc|ttya

This command directs power-on self-test (POST) output to either RSC (1) or ttya (0). This command takes effect after the next server reset.


Note - The command diag-consoleis not available for Sun Enterprise 250 servers; use the diag-output-tocommand instead (see diag-output-to rsc|ttya).


.rsc


Displays RSC information, including the diag-consolesetting (diag-output-tofor Sun Enterprise 250 servers) and the RSC POST status word.

rsc-hard-reset

Performs a hard reset of RSC. This is the same as using the command rscadm resetrsc.


Note - Available for Sun Enterprise 250 servers only.


rsc-soft-reset

Performs a soft reset of RSC. This is the same as using the command rscadm resetrsc -s.


Note - Available for Sun Enterprise 250 servers only.


diag-output-to rsc|ttya

Directs POST output to either RSC (1) or ttya (0). This command takes effect after the next server reset.


Note - Available for Sun Enterprise 250 servers only. For other supported workgroup servers, use the diag-consolecommand. See diag-console rsc|ttya.


rsc-mac-update

Updates the RSC Ethernet address from the contents of the server ID PROM. Use this command after replacing the server NVRAM module.


Note - Available for Sun Enterprise 250 servers only.


OpenBoot PROM Environment Variable Properties

Two environment variable properties are available to the user for specifying the RSC console to OpenBoot PROM. Define these variables at the ok prompt. For example: 


ok setenv input-device rsc-console

ok setenv output-device rsc-console

These properties take effect after the next server reset.


Note - For Sun Enterprise 250 servers, you must set input-deviceand
output-deviceto rscrather than to rsc-console.


rsc-console

This property is a new device alias that is valid for ttyio, input-device, and output-device OpenBoot PROM console variables. Screen output and keyboard input are typically still set to be the default, and ttya and ttyb continue to be other valid options.


Note - Not available for Sun Enterprise 250 servers. For Sun Enterprise 250 servers, you must set input-deviceand output-deviceto rscrather than to rsc-console.


rsc

This property is a device alias that is valid for ttyio, input-device, and output-device OpenBoot PROM console variables. Screen output and keyboard input are typically still set to be the default, and ttya and ttyb continue to be other valid options.


Note - Available for Sun Enterprise 250 servers only. For other supported workgroup servers, you must set input-deviceand output-deviceto rsc-consolerather than to rsc.


rsc!

This property is a new device alias that is valid for ttyio, input-device, and output-device OpenBoot PROM console variables. Screen output and keyboard input are typically still set to be the default, and ttya and ttyb continue to be other valid options. This variable does not allow OpenBoot PROM to automatically search for a working console if RSC is broken.



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