When I deploy this OVF on ESXi v5.0, I got this warning message.
Line 70: Unable to parse 'backing.exclusive' for attribute 'key' on element 'Config'.
I proceeded on and got a failure. It could not find file 'Ubuntu-12.04-LTS-Jeos-1.0-disk1.vmdk'. There is a file 'squidserver7-kn-JEOS-201303-disk1.vmdk' that closely resemble this file.
Thanks.