How do I output to network drive?

[CaliMiller]

I setup Automatic1111 on Debian 12 in a Proxmox virtual machine. I'm able to login to the webui remotely and generate images. I don't want the generated images filling up the SSD where the Stable Diffusion files are stored, so I'd like to output them to a network drive. But when I attempt to generate an image, I get this error:

PermissionError: [Errno 13] Permission denied '/mnt/StableD/2025-08-03

These are the steps I took to set it up:

I set a network drive to automount on boot through fstab:

//192.168.1.31/StableD /mnt/StableD cifs _netdev,username=myname,password=12345,rw,user,x-systemd.automount,x-systemd.requires=network-online.target,nofail 0 0

When logged into the virtual machine via SSH, I can navigate to the directory to verify it is mounted, and can see the contents.

I changed read/write permissions and gave ownership to the default user and group:

sudo chmod 775 /mnt/StableD
sudo chown -R stablediffusion:user /mnt/StableD

I changed the output location in the webui to the network share:

When I attempt to generate an image, I get the above error.

A user on Reddit had me double-check some permissions. I assumed that the /mnt directory is a system folder that requires elevated privileges, so I updated fstab to change the network share's mount point to /home/stablediffusion/share. When I try to generate images, I still get the same error that the directory is not writable.

Is there a way to give Automatic1111 elevated privileges? Is there a way to make the directory writable without requiring sudo?

Reddit thread: https://www.reddit.com/r/StableDiffusion/comments/1moz7ag/how_do_i_output_to_network_drive/