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Chapter 3. Converting virtual machines to run on KVM managed by libvirt
Warning
The Red Hat Enterprise Linux 6 version of the virt-v2v utility has been deprecated. Users of Red Hat Enterprise Linux 6 are advised to create a Red Hat Enterprise 7 virtual machine, and install virt-v2v in that virtual machine. The Red Hat Enterprise Linux 7 version is fully supported and documented in virt-v2v Knowledgebase articles.
virt-v2v
can convert virtual machines to run on Red Hat Enterprise Linux, using KVM managed by libvirt. Virtual machines can be converted from Xen, KVM, VMware ESX / ESX(i), and Hyper-V environments. The libvirt
and virsh
commands are documented in the Red Hat Enterprise Linux Virtualization Administration Guide. You may also use the command man virsh
for more information.
3.1. Introduction Copiar o linkLink copiado para a área de transferência!
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The
virt-v2v
command converts virtual machines from a foreign hypervisor to run on KVM, managed by libvirt. The following guest operating systems are supported by virt-v2v
:
- Red Hat Enterprise Linux 3.9
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Windows XP
- Windows Vista
- Windows 7
- Windows Server 2003
- Windows Server 2008
The following hypervisors are supported:
- KVM
- libvirt-managed Xen
- VMware ESX / ESX(i) - versions 3.5, 4.0, 4.1, 5.0, 5.1
The
virt-v2v
command enables paravirtualized (virtio
) drivers in the converted guest, if possible.
virt-v2v
is available on Red Hat Customer Portal in the Red Hat Enterprise Linux Server (v.6 for 64-bit x86_64) or Red Hat Enterprise Linux Workstation (v.6 for x86_64) channel.
The
virt-v2v
tool requires root access to the host system.
Some of the new features for
virt-v2v
starting with Red Hat Enterprise Linux 6 are:
- The
-op
and-osd
command line options continue to be supported, but are deprecated in favor of-os
. There is no deprecation warning when they are used. - The
-of
command line option allows specification of the file format to be used for target storage: raw or qcow2. This feature allows for the conversion of a virtual machine with raw storage to qcow2 and vice versa. - The
-oa
command line option allows the allocation policy of the target storage to be specified: sparse or preallocated. This can be used to convert between sparse and preallocated. Underlying this change, sparse volumes are now supported. - The configuration file can now contain target profiles, which specify the storage location, output format and allocation policy for a target. This allows the user to specify
--profile<foo>
rather than-os<a> -op<b> -oa<oc>
. - The conversion of Windows virtual machines to libvirt targets is supported.
Refer to the
virt-v2v
man page for further details on these and other features.
To install
virt-v2v
from the Red Hat Customer Portal, ensure the system is subscribed to the appropriate channel, then run:
yum install virt-v2v
# yum install virt-v2v