Installation guide

4. Use the commands below load the para-virtualized driver modules. %kvariant is the kernel

variant the para-virtualized drivers have been build against and %release corresponds to the

release version of the para-virtualized drivers.

[root@rhel3]# mkdir -p /lib/modules/'uname -r'/extra/xenpv

[root@rhel3]# cp -R /lib/modules/2.4.21-52.EL[%kvariant]/extra/xenpv/%release

/lib/modules/'uname -r'/extra/xenpv

[root@rhel3]# depmod -ae

[root@rhel3]# modprobe xen-vbd

[root@rhel3]# modprobe xen-vnif

Note

Warnings will be generated by insmod when installing the binary driver modules due

to Red Hat Enterprise Linux 3 having MO D VERSIO NS enabled. These warnings can

be ignored.

5. Verify /etc/modules.conf and make sure you have an alias for eth0 like the one below. If

you are planning to configure multiple interfaces add an additional line for each interface.

alias eth0 xen-vnif

Edit /etc/rc.local and add the line:

insmod /lib/modules/'uname -r'/extra/xenpv/%release/xen-vbd.o

Note

Substitute “% release” with the actual release version (for example 0.1-5.el) for the

para-virtualized drivers. If you update the para-virtualized driver RPM package make

sure you update the release version to the appropriate version.

6. Shutdown the virtual machine (use “ #shutdown -h now” inside the guest).

7. Edit the guest configuration file in /etc/xen/YourGuestName with a text editor, performing

the following changes:

Remove the “ type=ioemu” entry from the “ vif=” entry.

Add any additional disk partitions, volumes or LUNs to the guest so that they can be

accessed via the para-virtualized (xen-vbd) disk driver.

For each physical device, LUN, partition or volume you want to use the para-virtualized

drivers you must edit the disk entry for that device in the libvirt configuration file.

A typical disk entry resembles the following:

</disk>

⁠Chapt er 1 2 . Xen Para- virt ualiz ed Drivers

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