Openboot™ Ok Prompt Not Available After The Solaris Os Starts; Reaching The Ok Prompt; Graceful Shutdown - Sun Oracle Netra T5440 Administration Manual

OpenBoot™ ok Prompt Not Available After the
Solaris OS Starts
The OpenBoot firmware is not available and might be removed from memory once
the Solaris OS starts.
To reach the ok prompt from the Solaris OS, you must first halt the domain. Use the
Solaris OS halt(1M) command to halt the domain.

Reaching the ok Prompt

There are several ways to reach the ok prompt, depending on the state of the system
and the means by which you are accessing the system console. In decreasing order of
desirability, these are:

Graceful shutdown

■
ILOM service processor set /HOST send_break_action=break and
■
start /SP/console command pair
Break key
■
Manual system reset
■
Graceful reset of the control domain using ILOM reset command
■
A discussion of each method follows. For step-by-step instructions, see
the ok Prompt" on page
Note – As a rule, before suspending the operating system you should back up files,
warn users of the impending shutdown, and halt the system in an orderly manner.
However, it is not always possible to take such precautions, especially if the system
is malfunctioning.
Graceful Shutdown
The preferred method of reaching the ok prompt is to shut down the operating
system by issuing an appropriate command (for example, the shutdown, init, or
uadmin command) as described in Solaris system administration documentation.
Gracefully shutting down the system prevents data loss, enables you to warn users
beforehand, and causes minimal disruption. You can usually perform a graceful
shutdown, provided the Solaris OS is running and the hardware has not experienced
serious failure.
25.
Chapter 1
"To Obtain
Configuring the System Console 23