Installation guide

After you type elilo, the default kernel listed in the /boot/efi/elilo.conf configuration file is

loaded. (The first kernel listed in the file is the default.)

If you want to load a different kernel, type the label name of the kernel from the file /

boot/efi/elilo.conf after the elilo command. For example, to load the kernel named linux,

type:

elilo linux

If you do not know the names of the installed kernels, you can view the /boot/efi/elilo.conf

file in EFI with the following instructions:

1. At the Shell> prompt, change devices to the system partition (mounted as /boot/efi in

Linux). For example, if fs0 is the system boot partition, type fs0: at the EFI Shell prompt.

2. Type ls at the fs0:\> to make sure you are in the correct partition.

3. Then type:

Shell>type elilo.conf

This command displays the contents of the configuration file. Each stanza contains a line

beginning with label followed by a label name for that kernel. The label name is what you

type after elilo to boot the different kernels.

27.1. Post-Installation Boot Loader Options

In addition to specifying a kernel to load, you can also enter other boot options such as single

for single user mode or mem=1024M to force Red Hat Enterprise Linux to use 1024 MB of memory.

To pass options to the boot loader, enter the following at the EFI Shell prompt (replace linux

with the label name of the kernel you want to boot and option with the boot options you want to

pass to the kernel):

elilo linux option

27.2. Booting Red Hat Enterprise Linux Automatically

After installing Red Hat Enterprise Linux you can type elilo and any boot options at the EFI

Shell prompt each time you wish to boot your Itanium system. However, if you wish to configure

your system to boot into Red Hat Enterprise Linux automatically, you need to configure the EFI

Boot Manager.

To configure the EFI Boot Manager (may vary slightly depending on your hardware):

1. Boot the Itanium system and choose Boot option maintenance menu from the EFI Boot

Manager menu.

2. Choose Add a Boot Option from the Main Menu.

3. Select the system partition that is mounted as /boot/efi/ in Linux.

4. Select the elilo.efi file.

27.1. Post-Installation Boot Loader Options