Here is how I have moved Virtual Machines from VMware 5.1 to Oracle VM 3.2.1.
Download and install “VMware OVFTOOL 3” from the VMware site.
Unzip your VMware appliance into a directory on an Oracle Linux machine.
chmod 777 VMware-ovftool-3.0.1-801290-lin.x86_64.bundle
Copy (servername).vmx from VMware Server to Oracle Linux server.
scp -rv email@example.com:/vmfs/volumes/51e5588d-08c08646-572b-002128f0a4aa/Odysseus /d01/Odysseus
Export the vmx file to ova file
ovftool Odysseus/Odysseus.vmx /d01/Odysseus/odysseus.ova
Move (servername).ova file to /var/www/html/templates
You will have to make the templates directory and ensure httpd is running.
Import the (servername).ova into OVM 3.x as an assembly from the http site on the linux server that you did the conversion on.
Once (servername).ova has been imported create a vm from the template as usual.
See Oracle VM admin guide if you are unsure how to do this.
Hope this helps, if you have problems let me know and I will see if I can help.
I have 3 servers that host OVMx with a virtual server with the console OVM.
Then I have another windows server that publishes the website from which the amount of Operating Systems to create the new VM.
ovftool (and a copy of the server from VMWARE) where I have to install? On one of the three servers OVMx or on the Windows server?
The ovftool is not installed on the VMware or OVM hosts; it can be installed on any Windows or Linux server it does not matter if it is a physical or virtual machine. You will need to make sure on the machine that you have ovftool installed on that you have a enough room to copy the whole Virtual Machine folder from VMware that you want to convert to OVM format.
So if you have a Windows server that has IIS running you can install the ovftool there. Again make sure you have enough room on the server to copy the VMware Guest Folder to this server. You can use a tool like winscp to copy the folder/files from your VMware server to the Windows Server. Once this is done run the ovftool to convert the files to .ova format then you can present the file through your IIS server and make an assembly in OVM from the .ova host on your IIS server.
Hope this helps.