Professional Migration Guide from XCP-ng to VMware ESXi

Modernize your virtual infrastructure! We explain how to migrate from the open source XCP-ng platform to the industry standard VMware ESXi in all its technical details, without any data loss. A step-by-step guide with 2026's latest virtualization technologies and migration tools.

Why Should You Switch from XCP-ng to VMware ESXi?

XCP-ng (Xen Cloud Platform - next gen) is a great open source project based on Citrix Hypervisor. However, enterprise scalability 3. when it comes to party software support (Veeam, Zerto, etc.) and broad hardware compatibility VMware ESXi remains the industry leader. As of 2026 , ESXi is indispensable for businesses looking for performance and stability, despite the changing licensing models after VMware's acquisition by Broadcom.

2026 Trend Information: For next-generation NVMe SSD storage technologies and AI-enabled workloads, ESXi 8.0 and above can offer 20-30 % higher efficiency in hardware acceleration than XCP-ng.

In this guide, we will examine three different ways to move your virtual machines (Linux and Windows) on XCP-ng to the VMware environment while preserving data integrity.

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Critical Preparations Before Transport

Virtual machine migration is a risky process. Before you begin, be sure to complete the following steps:

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Take a snapshot of VMs on XCP-ng or professional backup service Make a backup to an external area using .

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"Xen Tools" or "Citrix Guest Tools" software in the VM be sure to remove it. These drivers may cause kernel panic or blue screen on ESXi.

Migration Methods You Can Use

Depending on your situation, you can choose one of the following 3 methods:

OVF/OVA Export & Import: It is the safest and standard method. Ideal for small and medium sized VMs.
StarWind V2V Converter: It is a free and powerful tool that converts disk format (VHD/XVA) directly to VMDK.
Clonezilla / ISO Boot: It is a method of taking a disk image as if you were moving a physical server. Provides direct transfer over the network.

Method 1: Export from XCP-ng via CLI (Expert Level)

If you are not using Xen Orchestra or if it is faster to operate via CLI, you can export the VM by connecting to your XCP-ng server via SSH.

Warning: Before starting the process, make sure the VM is powered off.

Step 1: Get VM UUID Information

First, we need to find the identification number (UUID) of the virtual machine you want to move.

SSH Terminal

xe vm-list# Output example:
uuid ( RO)           : 550e8400-e29b-41d4-a716-446655440000
     name-label ( RW): EkaSunucu_Web_Server
     power-state ( RO): halted
            

Step 2: Export VM to XVA Format

We will export the VM as a file. This process may take time depending on the size of the disk.

SSH Terminal

xe vm-export vm=550e8400-e29b-41d4-a716-446655440000 filename=/var/run/sr-mount/yedekler/eka_web.xva
            

Step 3: Converting XVA to OVF/VMDK

XCP-ng's `.xva` format is not directly recognized by VMware. To convert this file XenConvert or xva-img You can use the tool. However, the most practical way is to use the "Export to OVF" option directly via Xen Orchestra. If you do not have this opportunity, we will convert the disk to RAW format and use `qemu-img`.

Linux Conversion Host

# Unzip the XVA file (it's actually a tar archive)
tar -xf eka_web.xva

# Defragment the disk fragments in the ref directory (this may require scripting)
# Alternatively, convert VHD to VMDK with qemu-img:
qemu-img convert -f vpc -O vmdk disk.vhd eka_web.vmdk            

Method 2: StarWind V2V Converter (Recommended)

If you don't want to deal with complex commands, Windows-based StarWind V2V Converter The tool is a life saver. This tool can connect to a running XCP-ng server and “stream” the VM directly to the VMware ESXi server.

Download and Install: Install StarWind V2V Converter on your own computer.
Source Selection: Select "Remote Hypervisor", not "P2V Scenario", and enter the XCP-ng (Citrix Hypervisor) IP address, root password.
VM Selection: Select the powered off VM you want to move from the list.
Target Selection: Select "VMware ESXi Server" as the target. Enter your ESXi IP address and root information.
Format: Choosing "ESXi Stream-optimized" or "Thin Provisioning" as the disk format will shorten the transfer time.
Start: Start the process. The software will convert the disks and write them directly to the ESXi datastore.

Hint: With this method, you do not need an intermediate storage area and you minimize format conversion errors.

Method 3: VMware vCenter Converter Standalone

If your virtual machine is running (Powered On) and you cannot shut it down, you can migrate it by acting as a "Linux/Windows Physical Machine" using VMware's own tool.

Install VMware Converter inside the VM or run it from a Windows machine on the network. Select "Powered on remote machine" as the source and give the IP address of the VM on XCP-ng. Show your ESXi server as the target. This method copies at the operating system level.

Possible Problems and Solutions After Transition

1. Kernel Panic / Not Booting Problem

If you moved a Linux VM and are getting the "dracut" error at startup, the initramfs may need to be refreshed. Open it in Rescue mode and follow these commands:

Rescue Shell

dracut -f --regenerate-all

2. Network Card (NIC) Problems

Since the MAC addresses from XCP-ng will change, new names such as `ens192` may appear instead of `eth0` in Linux. Update the network settings to the new interface name under `/etc/netplan/` (Ubuntu) or `/etc/sysconfig/network-scripts/` (RHEL/CentOS).

3. Windows Activation

Your Windows servers may need to be reactivated because the hardware IDs have changed. Have your license key ready.

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