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Chapter 4
Booting and Shutting Down the Operating System
Booting and Shutting Down Linux
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Use the PE command at the management processor Command Menu to manually power on
or power off server hardware, as needed.
-r Reboot after shutdown.
-c Cancel an already running shutdown.
time When to shut down (required). You can specify the time option in any of the following ways:
• Absolute time in the format hh:mm, in which hh is the hour (one or two digits) and mm
is the minute of the hour (two digits).
• Number of minutes to wait in the format +m, in which m is the number of minutes.
• now to immediately shut down; this is equivalent to using +0 to wait zero minutes.
Refer to the shutdown(8) Linux manpage for details. Also refer to the Linux manpage for the poweroff
command.
Shutting Down Linux
From the command line for Red Hat Enterprise Linux or SuSE Linux Enterprise Server, issue the
shutdown command to shut down the OS.
Step 1. Log in to Linux running on the system you want to shut down.
Log in to the management processor (MP) for the server and use the Console menu to access the
system console. Accessing the console through the MP enables you to maintain console access to the
system after Linux has shut down.
Step 2. Issue the shutdown command with the desired command-line options, and include the required
time argument to specify when the operating shutdown is to occur.
For example, shutdown -r +20 will shut down and reboot the system starting in 20 minutes.