So I used a mount point as outlined here: https://forum.proxmox.com/threads/mount-nfs-on-node-works-on-lxc-debian-container-not.33899/ The NFS mount to the host is mounted simply via fstab on the host (not through the proxmox gui) and then presented to the container which appears just fine. The only issue is that when mounted this way the GUI has no idea what is going on with the container. Moreover, the rest of the containers on the host appear "grey" as if they were turned off (but all are up, accessible via SSH, etc.) Proxmox edition is 5.2-6. This seemed easier (and is more in line what I expect from docker and LXC using a bind mount) but it doesn't really help if the GUI doesn't work right.