I want to set up standard rdiff-backup to remote server. However the data is very big for the capacity of internet connection, so I have transferred them on physical media. Than I synchronized the data by rync to make sure they are identical. Now I want to do intial rdiff-backup. When I run the rdiff-backup there are lots of lines
Getting delta (with hash) of XY
as if the directories were NOT identical. What exactly do these lines mean? Do they mean that the remote rdiff-backup decided that the file is not identical, so there is a delta diff transferred?