I think the best method to migrate your vm to a physical server is this:
Create a backup of your redmine installation following this guide: https://docs.bitnami.com/virtual-machine/apps/redmine/#how-to-create-a-full-backup-of-redmine
Then, using an preexisting OS in your physical server (we are using Ubuntu in our vms) you must install our redmine stack ( as
Once installed, restore the back up in the new server following the above instructions.
Clone a vm into a physical server is not generally a good idea, there can be a lot of drivers and that kind of stuff problems.