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virt-v2v Windows VM migration pre-requisite

This article explains the prerequisites for migrating a Windows2019 VM from VMware cloud to OpenStack. These are additional requirements that needs to be setup before completing a Windows VM migration. If you do not complete it, you may see following error while completing a Windows VM migration. 

virt-v2v: error: One of rhsrvany.exe or pvvxsvc.exe is missing in /usr/share/virt-tools.
One of them is required in order to install Windows firstboot scripts.
You can get one by building rhsrvany (https://github.com/rwmjones/rhsrvany)

Pre-requisite

Environment

Kindly refer below details which is used in this documentation. IP can be different in your environment.

  • virt-v2v Virtual appliance - 192.168.11.11

Steps

Perform all below listed steps on virtual appliance to confiure it to be able to migrate windows VM.

Download virtio iso image

Download virtio iso image on virtual appliance. virtio image version can differ for different windows OS flavor so please check virtio compatibility matrix before downloading. Here I am using version 0.1.248 which is compatible with windows19. 

wget https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/virtio-win-0.1.248-1/virtio-win-0.1.248.iso

Mount downloaded image to /mnt directory

Mount iso image to /mnt directory.

mount virtio-win-0.1.248.iso /mnt

Create virtio-win directory

Create virtio-win directory under /usr/share

mkdir /usr/share/virtio-win

Copy image data

Switch to /mnt directory and copy data to /usr/share/virtio-win.

cd /mnt
cp -rpv * /usr/share/virtio-win/
cd
umount /mnt
ls -l /usr/share/virtio-win/
Check if you can see below files under /usr/share/virtio-win/

Example output

total 749040
dr-xr-xr-x 16 root root      4096 Feb 28  2024 Balloon
dr-xr-xr-x 16 root root      4096 Feb 28  2024 NetKVM
dr-xr-xr-x 13 root root      4096 Feb 28  2024 amd64
dr-xr-xr-x  2 root root      4096 Feb 28  2024 cert
dr-xr-xr-x  2 root root      4096 Feb 28  2024 data
dr-xr-xr-x 11 root root      4096 Feb 28  2024 fwcfg
dr-xr-xr-x  2 root root      4096 Feb 28  2024 guest-agent
dr-xr-xr-x  6 root root      4096 Feb 28  2024 i386
dr-xr-xr-x 14 root root      4096 Feb 28  2024 pvpanic
dr-xr-xr-x  7 root root      4096 Feb 28  2024 qemufwcfg
dr-xr-xr-x 14 root root      4096 Feb 28  2024 qemupciserial
dr-xr-xr-x  5 root root      4096 Feb 28  2024 qxl
dr-xr-xr-x  9 root root      4096 Feb 28  2024 qxldod
dr-xr-xr-x  5 root root      4096 Feb 28  2024 smbus
dr-xr-xr-x 11 root root      4096 Feb 28  2024 sriov
dr-xr-xr-x 11 root root      4096 Feb 28  2024 viofs
dr-xr-xr-x 11 root root      4096 Feb 28  2024 viogpudo
dr-xr-xr-x 13 root root      4096 Feb 28  2024 vioinput
dr-xr-xr-x 14 root root      4096 Feb 28  2024 viorng
dr-xr-xr-x 14 root root      4096 Feb 28  2024 vioscsi
dr-xr-xr-x 16 root root      4096 Feb 28  2024 vioserial
dr-xr-xr-x 16 root root      4096 Feb 28  2024 viostor
-r-xr-xr-x  1 root root   4539904 Feb 28  2024 virtio-win-gt-x64.msi
-r-xr-xr-x  1 root root   2573312 Feb 28  2024 virtio-win-gt-x86.msi
-r-xr-xr-x  1 root root  27447293 Feb 28  2024 virtio-win-guest-tools.exe
-r-xr-xr-x  1 root root      1598 Feb 28  2024 virtio-win_license.txt

Install additional packages

Run below commands to install few more packages needed for windows migration. 

apt install -y rpm2cpio
wget -nd -O srvany.rpm https://kojipkgs.fedoraproject.org//packages/mingw-srvany/1.1/4.fc38/noarch/mingw32-srvany-1.1-4.fc38.noarch.rpm
rpm2cpio srvany.rpm | cpio -idmv \
  && mkdir /usr/share/virt-tools \
  && mv ./usr/i686-w64-mingw32/sys-root/mingw/bin/*exe /usr/share/virt-tools/
Appliance is ready to perform windows vm migration. Switch back to doc VMware to OpenStack Migration using virt-v2v for further steps to perform actual disk migration.