Sun Microsystems Sun Fire V440 Diagnostics And Troubleshooting Manual page 183

Ways of Communicating With the System (Continued)
TABLE A-1
Devices Available for Accessing the System Console
A tip line attached to the serial management port (SERIAL MGT)
or ttyb. See the following:
• "How to Use the Serial Management Port" on page 178
• "How to Access the System Console via tip Connection" on
page 184
• "How to Modify the /etc/remote File" on page 187
• "How to Verify Serial Port Settings on ttyb" on page 191
• "Reference for System Console OpenBoot Configuration Variable
Settings" on page 196
An Ethernet line connected to the network management port
(NET MGT). See the following:
• "How to Activate the Network Management Port" on page 179
A local graphics monitor (frame buffer card, graphics monitor,
mouse, etc.). See the following:
• "How to Access the System Console via a Local Graphics
Monitor" on page 192
• "Reference for System Console OpenBoot Configuration Variable
Settings" on page 196.
* After initial system installation, you can redirect the system console to take its input from and send its output
to the serial port ttyb.
What the System Console Does
The system console displays status and error messages generated by firmware-based
tests during system startup. After those tests have been run, you can enter special
commands that affect the firmware and alter system behavior. For more information
about tests that run during the boot process, see "About Diagnostics and the Boot
Process" on page 8.
Once the operating environment is booted, the system console displays UNIX
system messages and accepts UNIX commands.
Using the System Console
To use the system console, you need some means of getting data in to and out of the
system, which means attaching some kind of hardware to the system. Initially, you
might have to configure that hardware, and load and configure appropriate software
as well.
Appendix A Configuring the System Console
During After
*
Installation Installation
165