I cannot restore a backup of the old server

Good afternoon. Decided to move an existing Netserver c Bare Metal to Virtual. Set c image. Since I live in Russia, immediately after installation, the server was unable to restore the backup, as complained about the unavailability of the repository. I pushed those that are now on the main server and updated yum update. After that decided to restore a backup. But when you restore it again changes the repository and therefore the server is unavailable again! What am I to do?
PS I think this problem should be such as to admit of new releases.


This is what happened to me…

So I updated, but when restoring the backup, the system changes back to the repository and, accordingly, again error.