Setup a NFS Server/Client on the RaspberryPi 3
Setup the Server Side - Disks and Directories
Prepare the directories:
$ sudo mkdir -p /opt/nfs
$ sudo chown pi:pi /opt/nfs
$ sudo chmod 755 /opt/nfs
For demonstration, I will be using the same disk as my OS, but if you have other disks that you would like to mount, mount them like the following:
$ sudo lsblk
$ sudo mount /dev/sda2 /opt/nfs
$ sudo chown -R pi:pi /opt/nfs/existing_dirs
$ sudo find /opt/nfs/existing_dirs/ -type d -exec chmod 755 {} \;
$ sudo find /opt/nfs/existing_dirs/ -type f -exec chmod 644 {} \;
If you mounted the disk, and you would like to mount the disk on boot, we need to add it to our /etc/fstab. We can get the disk by running either:
$ sudo lsblk
# or
$ sudo blkid
Populate the /etc/fstab with your disk info, it will look more or less like:
/dev/sda2 /opt/nfs ext4 defaults,noatime 0 0
Append rootdelay=10 after rootwait in /boot/cmdline.txt, then reboot for the changes to become active.
Setup the Server Side - Installing NFS Server
Install the NFS Server packages:
$ sudo apt install nfs-kernel-server nfs-common rpcbind -y
Configure the paths in /etc/exports, we need to uid gid for the user that owns permission that we need to pass to the NFS Client. To get that:
$ id pi
uid=1000(pi) gid=1000(pi)
Setup our path that we would like to be accessible via NFS:
/opt/nfs 192.168.1.0/24(rw,all_squash,no_hide,insecure,async,no_subtree_check,anonuid=1000,anongid=1000)
If you would like to have open access:
/opt/nfs *(rw,all_squash,no_hide,insecure,async,no_subtree_check,anonuid=1000,anongid=1000)
Export the config, enable the services on boot and start NFS:
$ sudo exportfs -ra
$ showmount -e 192.168.1.2
$ sudo systemctl enable rpcbind
$ sudo systemctl enable nfs-kernel-server
$ sudo systemctl enable nfs-common
$ sudo systemctl start rpcbind
$ sudo systemctl start nfs-kernel-server
$ sudo systemctl start nfs-common
Setup the NFS Client
On the client install the NFS Client packages:
$ sudo apt install nfs-common -y
Create the mountpoint of choice and change the ownership:
$ sudo chown pi:pi /mnt
Setup the /etc/idmapd.conf to match the user:
[Mapping]
Nobody-User = pi
Nobody-Group = pi
Mount the NFS Share to your local mount point:
$ sudo mount 192.168.1.2:/opt/nfs /mnt
Enable mount on boot via /etc/fstab:
192.168.1.2:/opt/nfs /mnt nfs rw 0 0
Resources:
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