Oracle Audio Technologies E10898-02 User Manual

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Converting a Hardware Virtualized Guest to a Paravirtualized Guest

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Oracle VM Server User's Guide

4.7 Converting a Hardware Virtualized Guest to a Paravirtualized Guest

You may want to convert a hardware virtualized guest to a paravirtualized guest. This
example uses Oracle Enterprise Linux 4 Update 5 as it does not support a direct
installation as a paravirtualized guest, and paravirtual drivers are available for this
operating system. This procedure gives an example of installing Oracle Enterprise
Linux as a hardware virtualized guest, then converting it to a paravirtualized guest.

To create an Oracle Enterprise Linux 4, Update 5, paravirtualized guest:

Copy the Oracle Enterprise-R4-U5-x86_64-dvd.iso image to the local file system of
the Oracle VM Server computer

# ls -l /root/Enterprise-R4-U5-x86_64-dvd.iso

-rw-r--r-- 1 root root 2530611200 Aug 2 13:03 /root/Enterprise-R4-U5-x86_

64-dvd.iso

Create a logical volume, which will be used as the guest disk image.

# lvcreate -L8G -n el4u5 VolGroup00

Run the virt-install command-line tool to create a hardware virtualized machine
domU, and install the Oracle Enterprise Linux operating system.

# virt-install -n el4u5 -f /dev/VolGroup00/el4u5 -v -c

/root/Enterprise-R4-U5-x86_64-dvd.iso -r 512 --vnc

If you see this error message:

main: unable to connect to host: Connection refused (111)

You must run VNCViewer to reconnect to the guest console:

# vncviewer :0

The Oracle Enterprise Linux install begins. From the installation choices, select the
following:

Installation type: Server

Package selection: Default.

Partition layout type: Make sure the guest has a single root partition. Do not
configure the virtual disk using LVM. Do not create a swap partition, or other
partitions mounted at other locations such as /usr or /boot.

Firewall: Disable.

SELinux: Disable.

Network: Configure the network settings for either DHCP or a fixed IP address.

When the Oracle Enterprise Linux installation is complete, restart the guest. If the
guest does not restart automatically, use the xm command-line tool to restart it, for
example:

# xm list

Name ID Mem VCPUs State Time(s)

Domain-0 0 944 2 r----- 5670.8

# xm create el4u5

Using config file "/etc/xen/el4u5".

Started domain el4u5

# vncviewer :0