It’s a bit more… analog than that.
If you’re as noob as i am (a stated lot of times before), using the NethServer ISO leads to a much more predictable experience, on different kind of situations: the partition table and schema is known, and a lot of solutons are applicable without too much hassle.
IDK if the Backup configuration also take consideration of the partitioning/mountpoints or only the filesystem paths. Which a skilled sysadmin can change, as someone did on this issue when the size of the disk was… too small.