I am trying to setup rsync to pull all the files off a server every few hours. However when I try to run the job manually as a test I get a Host key verification failed error. Normally when this happens I just delete to known hosts file and move on, but in this case I either don't have access to the file or it doesn't exist. The settings I used work fine on other devices. I am running OMV on a rpi3, but I don't think that makes a difference.
Are there other setup steps that I missed?
Full error message:
Host key verification failed.
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: unexplained error (code 255) at io.c(226) [Receiver=3.1.1]