Installation guide

terminal --timeout=10 serial console
title Red Hat Enterprise Linux Server (2.6.17-1.2519.4.21.el5xen)
root (hd0,0)
kernel /xen.gz-2.6.17-1.2519.4.21.el5 com1=115200,8n1
module /vmlinuz-2.6.17-1.2519.4.21.el5xen ro root=/dev/VolGroup00/LogVol00
module /initrd-2.6.17-1.2519.4.21.el5xen.img
Note
Your grub.conf could look very different if it has been manually edited before or copied from
an example. Read Chapter 29, Configuring the Xen kernel boot parameters for more information
on using virtualization and grub.
To set the amount of memory assigned to your host system at boot time to 256MB you need to
append dom0_mem=256M to the xen line in your grub.conf. A modified version of the grub
configuration file in the previous example:
#boot=/dev/sda
default=0
timeout=15
#splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
terminal --timeout=10 serial console
title Red Hat Enterprise Linux Server (2.6.17-1.2519.4.21.el5xen)
root (hd0,0)
kernel /xen.gz-2.6.17-1.2519.4.21.el5 com1=115200,8n1 dom0_mem=256MB
module /vmlinuz-2.6.17-1.2519.4.21.el5xen ro
root=/dev/VolGroup00/LogVol00
module /initrd-2.6.17-1.2519.4.21.el5xen.img
33.6. Verifying virt ualizat ion ext ensions
Use this section to determine whether your system has the hardware virtualization extensions.
Virtualization extensions (Intel VT or AMD-V) are required for full virtualization.
Note
If hardware virtualization extensions are not present you can use Xen para-virtualization with
the Red Hat kernel-xen package.
1. Run the following command to verify the CPU virtualization extensions are available:
$ grep -E 'svm|vmx' /proc/cpuinfo
2. Analyze the output.
The following output contains a vmx entry indicating an Intel processor with the Intel VT
extensions:
Red Hat En t erp rise Lin ux 5 Virt ualizat ion Guid e
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