HP Integrity rx4640, User'S & Service Manual

Page: 160 / 197

Booting the Operating System
Booting and Shutting Down Linux
Appendix B
160
From the system console, choose the
EFI Shell
entry from the EFI Boot Manager menu to access the
shell.
Step 2. Access the EFI System Partition for the SuSE Linux Enterprise Server boot device.
Use the
map
EFI Shell command to list the file systems (
fs0
,
fs1
, and so on) that are known and
mapped.
To choose a file system to use, enter its mapped name followed by a colon (
:
). For example, to
operate with the boot device that is mapped as
fs3
, enter
fs3:
at the EFI Shell prompt.
Step 3. Enter
ELILO
at the EFI Shell command prompt to launch the
ELILO.EFI
loader.
If needed, you can specify the loader’s full path by entering
\efi\SuSE\elilo
at the EFI Shell
command prompt.
Step 4. Allow the
ELILO.EFI
loader to proceed with booting the SuSE Linux kernel.
By default, the
ELILO.EFI
loader boots the kernel image and options specified by the default item
in the
elilo.conf
file.
To interact with the
ELILO.EFI
loader, interrupt the boot process (for example, enter a space) at the
ELILO boot
prompt. To exit the loader use the
exit
command.
Shutting Down Linux
Use the
shutdown
command to shut down Red Hat Enterprise Linux or SuSE Linux Enterprise Server.
The Red Hat Enterprise Linux and SuSE Linux Enterprise Server
shutdown
command has the following
options:
-h
Halts (power off) after shutdown.
Use the
PC
command at the management processor Command menu to manually power on
or power off server hardware, as needed.
-r
Reboots after shutdown.
-c
Cancels an already running shutdown.
time
When to shut down. (Required.) You can specify
time
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.
For details, see the shutdown (8) Linux manpage. Also see the Linux manpage for the
poweroff
command.
Step 1. From the command line for Red Hat Enterprise Linux or SuSE Linux Enterprise Server, issue the
shutdown
command to shut down the operating system.
Step 2. Log in to Linux running on the server you want to shut down.
Step 3. Issue the
shutdown
command with the desired command-line options, and include the required
time
argument to specify when the operating system shutdown is to occur.
For example,
shutdown -r +20
shuts down and reboots the server in twenty minutes.