With the great new update 3 to Veeam Backup and Replication 9.5, we are able to create agent backup jobs/policies from Veeam B&R console. However, the user interface for selecting volumes for Volume Level Backup does not seem to accept volumes without a drive letter (such as Boot, Recovery Partition, EFT System Partition).
All these partitions are selected automatically if you perform "Entire machine" backup. In managed mode there is no way to select partitions that have no letter assigned.
If I am not mistaken system partitions should be automatically included in the backup whenever you backup operating system volume. Please create a single host policy/job, run one time backup and then start file level restore (or export as virtual disk) to double check. Thank you in advance.
These partitions do not have a mount point, so you wont see them in File level recovery. Run a volume level restore and you should see them the volumes.