Novell SUSE LINUX ENTERPRISE DESKTOP 11 SP1 - 8-18-2010 VIRTUALIZATION WITH ZEN Manual page 91

• Specify the kernel image and initial RAM disk.
• Select a specific hypervisor.
• Pass additional parameters to the hypervisor (see /usr/share/doc/packages/
xen/pdf/user.pdf section "Xen Boot Options" after installing the package
xen-doc-pdf).
You can customize your virtualization environment by editing the /boot/grub/
menu.lst file.
If the Xen option does not appear on the GRUB boot menu, you can compare your up-
dated GRUB boot loader file with the examples below to confirm that it was updated
correctly.
The first example shows a typical GRUB boot loader file updated to load the kernel
that supports virtualization software. The second example shows a GRUB boot loader
file that loads the PAE-enabled virtualization kernel.
Example 9.1 Xen Section in the menu.lst File (Typical)
title XEN
root (hd0,5)
kernel /boot/xen.gz hyper_parameters
module /boot/vmlinuz-xen kernel_parameters
module /boot/initrd-xen
The title line defines sections in the boot loader file. Do not change this line, because
YaST looks for the word XEN to verify that packages are installed.
The root line specifies which partition holds the boot partition and /boot directory.
Replace hd0,5 with the correct partition. For example, if the drive designated as hda1
holds the /boot directory, the entry would be hd0,0.
The kernel line specifies the directory and filename of the hypervisor. Replace
hyper_parameters with the parameters to pass to the hypervisor. A common pa-
rameter is dom0_mem=<amount_of_memory>, which specifies how much memory
to allocate to Domain0. The amount of memory is specified in KB, or you can specify
the units with a K, M, or G suffix, for example 128M. If the amount is not specified,
the Domain0 takes the maximum possible memory for its operations.
Administration Tasks 81