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. You can also use the system Power button to initiate a graceful system shutdown.
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.
You can also perform a graceful system shutdown from the ALOM system controller command prompt.
ALOM System Controller break or console Command
Typing break from the sc> prompt forces a running Netra 440 server to drop into OpenBoot firmware control. If the operating system is already halted, you can use the console command instead of break to reach the ok prompt.
After forcing the system into OpenBoot firmware control, be aware that issuing certain OpenBoot commands (like
L1-A (Stop-A) Keys or Break Key
When it is impossible or impractical to shut down the system gracefully, you can get to the ok prompt by typing the
After forcing the system into OpenBoot firmware control, be aware that issuing certain OpenBoot commands (like
Note – These methods of reaching the ok prompt will only work if the system console has been redirected to the appropriate port. For details, see “System Console OpenBoot Configuration Variable Settings” on page 31.
Chapter 1 Configuring the System Console 11
