Itanium Systems; Ibm S/390 And Ibm Eserver Zseries Systems - Red Hat ENTERPRISE LINUX 4 System Administration Manual

Chapter 36. Manually Upgrading the Kernel
splashimage=(hd0,0)/grub/splash.xpm.gz
title Red Hat Enterprise Linux (2.6.9-5.EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-5.EL ro root=LABEL=/
initrd /initrd-2.6.9-5.EL.img
title Red Hat Enterprise Linux (2.6.9-1.906_EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-1.906_EL ro root=LABEL=/
initrd /initrd-2.6.9-1.906_EL.img
If a separate /boot/ partition was created, the paths to the kernel and initrd image are relative to /
boot/.
Notice that the default is not set to the new kernel. To configure GRUB to boot the new kernel by
default, change the value of the default variable to the title section number for the title section that
contains the new kernel. The count starts with 0. For example, if the new kernel is the first title section,
set default to 0.
Begin testing the new kernel by rebooting the computer and watching the messages to ensure that the
hardware is detected properly.

36.6.2. Itanium Systems

Itanium systems use ELILO as the boot loader, which uses /boot/efi/EFI/redhat/elilo.conf
as the configuration file. Confirm that this file contains an image section with the same version as the
kernel package just installed:
prompt
timeout=50
default=old
image=vmlinuz-2.6.9-5.EL
label=linux
initrd=initrd-2.6.9-5.EL.img
read-only
append="root=LABEL=/"
image=vmlinuz-2.6.9-1.906_EL
label=old
initrd=initrd-2.6.9-1.906.img
read-only
append="root=LABEL=/"
Notice that the default is not set to the new kernel. To configure ELILO to boot the new kernel, change
the value of the default variable to the value of the label for the image section that contains the
new kernel.
Begin testing the new kernel by rebooting the computer and watching the messages to ensure that the
hardware is detected properly.

36.6.3. IBM S/390 and IBM eServer zSeries Systems

The IBM S/390 and IBM eServer zSeries systems use z/IPL as the boot loader, which uses /etc/
zipl.conf as the configuration file. Confirm that the file contains a section with the same version as
the kernel package just installed:
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