Chapter 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-console is not available for Sun Enterprise 250 servers; use the diag-output-to command instead (see diag-output-to rsc|ttya).

`.rsc`

Displays RSC information, including the diag-console setting (diag-output-to for 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-console command. 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-consoleok setenv output-device rsc-console

These properties take effect after the next server reset.

`ok` `setenv input-device rsc-consoleok` `setenv output-device rsc-console`

Note - For Sun Enterprise 250 servers, you must set input-device and
output-device to rsc rather 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-device and output-device to rsc rather 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-device and output-device to rsc-console rather 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.