Chapter 4
Booting and Shutting Down the Operating System
Booting and Shutting Down Linux
166
From the system console, select the EFI Shell entry from the EFI Boot Manager menu to access the
shell.
Step 2. Access the EFI System Partition for the Red Hat Enterprise Linux boot device.
Use the map EFI Shell command to list the file systems (fs0, fs1, and so on) that are known and
have been mapped.
To select 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\redhat\elilo at the EFI Shell
command prompt.
Step 4. Allow the ELILO.EFI loader to proceed with booting the Red Hat Enterprise 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, type a space) at the
ELILO boot prompt. To exit the loader, use the exit command.
Booting SuSE Linux Enterprise Server
You can boot the SuSE Linux Enterprise Server 9 OS on HP Integrity servers using either of the methods
described in this section.
Refer to “Shutting Down Linux” on page 167 for details on shutting down the SuSE Linux Enterprise Server
OS.
CAUTION ACPI Configuration for SuSE Linux Enterprise Server Must Be default
On cell-based HP Integrity servers, to boot the SuSE Linux Enterprise Server OS, an
nPartition ACPI configuration value must be set to default.
At the EFI Shell, enter the acpiconfig command with no arguments to list the current ACPI
configuration. If the acpiconfig value is not set to default, then SuSE Linux Enterprise
Server could panic.
To set the ACPI configuration for SuSE Linux Enterprise Server:
• At the EFI Shell enter the acpiconfig default command.
• Enter the reset command for the nPartition to reboot with the proper (default)
configuration for SuSE Linux Enterprise Server.
Use either of the following methods to boot SuSE Linux Enterprise Server:
• Choose a SuSE Linux Enterprise Server entry from the EFI Boot Manager menu.
To load the SuSE Linux Enterprise Server OS at the EFI Boot Manager menu, choose its entry from the
list of boot options.
Choosing a Linux entry from the boot options list boots the OS using ELILO.EFI loader and the
elilo.conf file.
• Initiate the ELILO.EFI Linux loader from the EFI Shell.