Convert XVA to VHD
Convert XenServer or XCP-ng XVA exports into usable VHD virtual disks.
Make VHD files online
We can't read XVA files yet, so this conversion isn't available. If you can export your work to one of these formats - or others - we'll turn it into VHD:
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How to convert xva to vhd file
- Virtualization
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An XVA export needs conversion when its virtual disk must run outside XenServer or XCP-ng, such as on Hyper-V or another VHD-compatible system. The practical method imports the appliance into a XenServer-compatible host and exports each virtual disk as a VHD.
What the XVA format is
XVA is the virtual-machine export format used by Citrix Hypervisor/XenServer and commonly by XCP-ng. XenCenter and XenServer-compatible export tools create XVA files for moving or backing up a VM and importing it into another compatible environment.
An XVA file is a TAR-based archive containing VM metadata and one or more virtual disks represented as block data. It is not a single VHD image, so renaming .xva to .vhd does not convert it.
What the VHD format is
VHD is Microsoft’s Virtual Hard Disk format. Hyper-V, VirtualBox, QEMU, and various backup and disk-management tools can attach or import VHD files.
A VHD contains one virtual disk’s partition table, boot files, operating system, and data. It does not contain the complete VM definition from the XVA, including virtual hardware settings, network configuration, or snapshot metadata.
How to convert XVA to VHD
Using XenCenter and xe
- Provide access to a compatible XenServer, Citrix Hypervisor, or XCP-ng host and an SR with enough free space for the imported VM and exported disks.
- In XenCenter, connect to the host or pool and select File → Import. Choose the XVA, select the destination storage repository, and complete the import. Keep the imported VM powered off during disk export.
- Find the imported VM’s UUID:
xe vm-list name-label="Imported VM name"
List its virtual disks and record each VDI UUID:
xe vm-disk-list uuid=VM_UUID
Export each VDI as a VHD:
xe vdi-export uuid=VDI_UUID filename=/path/to/disk.vhd format=vhd
Repeat the export with a different filename for every virtual disk. Copy the resulting VHD files to the destination host, create a VM with matching firmware and guest settings, and attach the disks to the appropriate controller.
Using the command line
The XenServer or XCP-ng command line can import the XVA without XenCenter:
xe vm-import filename=/path/to/appliance.xva sr-uuid=SR_UUID
Use the returned VM UUID with xe vm-disk-list, then export each VDI with xe vdi-export and format=vhd. The command syntax and supported export formats can vary by XenServer or XCP-ng release; check xe help on the target host.
Local extraction tools
Some XenServer and XCP-ng distributions provide xva-img for extracting XVA disk data, but availability and syntax vary. Run xva-img --help for the installed version and inspect the result before attaching it to another hypervisor. Host-backed import followed by xe vdi-export is preferable because the platform interprets the XVA metadata and disk records.
Compatibility and limitations
The conversion exports disk contents, not the original VM configuration. Recreate the destination VM with the same BIOS or UEFI mode and attach the system disk to a compatible controller. A Windows guest may require driver changes or reactivation after its virtual hardware changes; a Linux guest may need bootloader or /etc/fstab corrections if device identifiers change.
Handle snapshot chains before exporting where possible. After conversion, verify the partition table, filesystem, boot mode, and guest startup before deleting the XVA or imported VM.
VHD has a practical maximum capacity of about 2 TB, while VHDX supports substantially larger disks and better resilience. Use VHDX when the destination supports it and the source disk exceeds the VHD limit. Exporting to VHD does not reduce the guest’s used data; filesystem cleanup and image compaction are separate operations.
Online converters are generally unsuitable for XVA. Uploading an XVA exposes an entire operating-system disk, and many web services do not interpret XenServer metadata or block structure correctly. Use XenCenter, the local xe tools, or a locally installed extraction utility instead. Citrix XenConvert is obsolete and should not be treated as the standard XVA-to-VHD method.
XVA vs VHD: format comparison
How the XVA and VHD formats compare on the properties that matter most for this conversion.
| Property | .XVA XenServer VM Archive | .VHD Virtual Hard Disk |
|---|---|---|
| Compression | — | Both |
| Bootable | No | Yes |
| Operating system support | Niche | Wide |
| Typical file size | Large | Large |
| Open standard | No | Partly open |
| Introduced | — | 2005 |
| Developer | Citrix Systems | Microsoft |
| MIME type | application/x-xva | application/x-vhd |
Information about file extensions and file types is provided by File-Extensions.org
Suggested software and links: xva to vhd converters
Frequently asked questions
Does converting XVA to VHD preserve the virtual machine settings?
No. The VHD contains the virtual disk data, while XVA metadata such as memory, CPU, network settings, and other VM configuration is not preserved in the disk image.
Will an XVA converted to VHD keep my files and partitions?
Usually, yes: the guest operating system, partitions, and files stored on the exported virtual disk are carried into the VHD. If the XVA contains multiple virtual disks, they may need to be handled as separate VHD files rather than one combined disk.
Why does my converted VHD not boot after converting from XVA?
A VHD can fail to boot if it is attached with the wrong firmware mode, boot order, disk controller, or virtual hardware settings. The conversion extracts disk contents but does not automatically recreate the original XenServer or XCP-ng VM environment.
Can I just rename an XVA file to VHD?
No. XVA is an archive containing virtual disk data and metadata, whereas VHD is a virtual hard disk image. The XVA must be properly extracted and reconstructed as a VHD; renaming the extension does not convert the contents.