Sun Microsystems Sun Fire V480, Administration Manual

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204 Sun Fire V480 Server Administration Guide • February 2002
How to Use OpenBoot Information
Commands
This section explains how to run OpenBoot commands that display different kinds
of system information about a Sun Fire V480 server. To find out what these
commands tell you, see “Other OpenBoot Commands” on page 96, or refer to the
appropriate man pages.
Before You Begin
As long as you can get to the
ok
prompt, you can use OpenBoot information
commands. This means the commands are usually accessible even if your system
cannot boot its operating environment software.
What to Do
1. If necessary, halt the system to reach the
ok
prompt.
How you do this depends on the system’s condition. If possible, you should warn
users and shut the system down gracefully. For information, see “About the ok
Prompt” on page 55.
2. Decide what kind of system information you want to display.
For more information, see “Other OpenBoot Commands” on page 96.
3. Type the appropriate command at a console prompt. See
TABLE 11-2
.
TABLE 11-2
Using OpenBoot Information Commands
Command to Type What It Displays
.env
Fan speeds, currents, voltages, and temperatures
printenv
OpenBoot configuration variable defaults and settings
probe-scsi
probe-scsi-all
probe-ide
Target address, unit number, device type, and manufacturer name
of active SCSI, IDE, and FC-AL devices
show-devs
Hardware device paths of all devices in the system configuration