I have just started using Xeoma and I am also a relative newbie with Linux, and I am using ubuntu 18.04 lts
I have created a path for the files in ubuntu: which is Home/CCTV/xeoma
I've also changed the relevant permissions.
As I want to store the video files on my NAS server, I have mounted the path to my NAS server in the /etc/fstab file:
IP address of server:/mnt/CCTV/xeoma /mnt/CCTV/xeoma
In 'other locations' of the files manager, nautilus, there are folders for the NAS server IP address, and also the sub folders where video archiving was sent to for the 2 Hikvision cameras, which is strange as the 2 Merrit Liiln cameras sent the recording to my NAS server.
In the Preview and Archive, I have for the Folder or network path as: //ip address of server:/mnt/CCTC/xeoma