Mount a Synology NAS shared folder to a Raspberry PI 4 folder with NFS

1. Assign a static IP address to the NAS and the router (use static DHCP leases with Livebox)

• xxx.xxx.xxx.xxx (NAS)
• xxx.xxx.xxx.yyy (Wired RPI)
• xxx.xxx.xxx.zzz (Wireless RPI)

2. On the Synology NAS host
--> Create the shared folder FOLDER on the NAS
--> Sync the FOLDER folder with a folder on Google Drive using Cloud Sync
--> Set NFS permissions on the shared folder for the RPI with read/write access for wired and wireless RPI addresses

3. On the client RPI
In the example, user = raspi
--> Update the package database

sudo apt update

--> Upgrade the system

sudo apt full-upgrade

--> Create a folder directory for mounting

sudo mkdir /home/raspi/folder

--> Granting all rights on the mounting folder and the files of the folder.

sudo chmod -R 777 /home/raspi/dossier
sudo chown -R raspi:raspi /home/raspi/dossier

--> Create a Scripts folder for the mounting script

sudo mkdir /home/raspi/Scripts

--> Create the mount-folder.sh file for mounting with Geany

sudo geany

--> Enter the code into Geany
In the mount, the -t (type) option should be followed by the used protocol, here nfs
Replace xxx.xxx.xxx.xxx with the correct value

#/bin/bash
sudo mount -t nfs xxx.xxx.xxx.xxx:/volume1/FOLDER /home/raspi/folder

--> Save in the /home/raspi/Scripts directory with the name mount-folder.sh

--> Create the service file mount-folder.service for mounting with Geany for startup automation

sudo geany

--> Enter the code into Geany

[Unit]
# Description of service: Mount NAS folder
Description=Mount NAS folder

# This service will start after the network is available
After=network-online.target

[Service]
# Command to execute to start the service: execute the bash script to mount the NAS folder
ExecStart=/bin/bash /home/frapoi/Scripts/mount-folder.sh

# Working directory to execute the command
WorkingDirectory=/home

# Restart the service on failure
Restart=on-failure

# Run the service as user 'frapoi'
User=frapoi

[Install]
# Enable this service on system startup
WantedBy=multi-user.target

--> Save in the /etc/systemd/system/ directory with the name mount-folder.service

--> Enable the mount-folder.service file

sudo systemctl enable mount-folder.service

--> Reboot the RPI

sudo reboot

The mounted folder appears on the RPI desktop.
The script can be adapted depending on the NAS used and provides the basic principle.