Converter doesn't support restoring backup images (except some legacy old versions of Symantec, Acronis, StorageCraft). There is one more bad news - you won't be able to do convert the running machine easily. There is a bug in Converter 5.1 that fails the reconfiguration step when the source is a 'different' distro, i.e. not one of the supported RHEL, SLES, and Ubuntu. 5.0 won't do either because it can't reconfigure RHEL 6 (and almost certainly CentOS 6 too).
That said, I see the following options for workaround:
- you do a P2V from the remote location. Converter usually requires to work in a LAN but this is limitation of the underlying network protocol. For Linux P2V however, it uses tar over SSH, so it should work. The conversion will fail during reconfiguration (e.g. at 98%) but all the data would be transferred. Then you should proceed with manual reconfig.
- create a new VM, boot it from a live CD, and copy the backup image in it, e.g. using dd. Then proceed with manual reconfig.
You have a look here about what manual reconfig includes: Re: Conversion fails with the error:FAILED: An error occurred during the conversion:'root is not found'
HTH
Plamen