bad network name - Plex VM can't seem to mount drive on TrueNAS VM

[flanking0409]

I am very new to all of this, so I apologize if I ask questions that appear to have obvious answers. I've spent around two hours looking around on the web for an answer to this, but i haven't really gotten anywhere.

I have a Plex VM and TrueNAS VM hosted on Proxmox. I can access both of these VMs using SSH and their respective web GUIs on other computers in my network. Ideally, I would like to have the TrueNAS storage pool I created to be mounted on my Plex VM. I wrote

//192.168.50.9/mnt/plex /PlexMedia cifs defaults 0 0

in fstab - 192.168.50.9/mnt/plex is the mounted location of the storage pool on my TrueNAS VM and /PlexMedia is the designated mounting location on my Plex VM.

I keep getting the error

BAD_NETWORK_NAME: \\192.168.50.9\mnt

when I run mount -a and I'm not sure why.

 

[flanking0409]

Okay, so I install cifs-utils and keyutils and then changed my /etc/fsab to

//192.168.50.9/plex /PlexMedia cifs username=[my username for shared storage],password=[my password for shared storage] 0 0

(I assume the reason why this worked is because the shared pool is broadcasted as just truenas.local/plex rather than /mnt/plex, but I am unsure.)

After running

systemctl daemon-reload
sudo mount -a

I came up with no errors and am able to my pooled storage from TrueNAS on my Plex server.

TL;DR: I seem to have fixed the problem.