Guides to convert virtual machines between platforms.

• Converting ova to qcow2 (qemu/kvm):

  https://blog.ricosharp.com/posts/2019/Converting-ova-file-to-qcow2
  https://tekbyte.net/2020/how-to-convert-ova-image-to-qcow2-qemu-and-virt-manager
  https://dev.to/guinuxbr/convert-ova-to-qcow2-48f2
  https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000POFcCAO
  

• Importing Virtual Machine from Oracle VirtualBox to VMware Fusion, Workstation, or Player:

  https://kb.vmware.com/s/article/2053864
  https://www.vembu.com/blog/migrate-vms-from-virtualbox-to-vmware/
  http://www.vmwarearena.com/convert-ova-to-ovf-using-the-vmware-ovf-tool
  

• Convert qcow2 to ovf:

  https://serverfault.com/questions/604862/any-way-to-convert-qcow2-to-ovf
  

• Export VM to OVA or OVF using VMWARE OVF Tool:

  http://www.vmwarearena.com/export-vm-to-ova-or-ovf-using-ovf-tool