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I use this mainly on my amateur radio hotspot when I work on my sleek dashboard.
This setup lets me edit the php-files on my computer while I use the already installed webserver as a development server to view the actual changes/progress. The advantage of that is: I don’t have to feed pseudo-random data into the tables, the data gets pulled live from the logs – like it would be on the final system.
Installation and configuration #
$ sudo apt update $ sudo apt install nfs-kernel-server
$ sudo vim /etc/exports
We have to export our directories in the file
/etc/exports on our Raspberry Pi.
# file: "/etc/exports" /var/www/html 192.168.1.123(rw,async,all_squash,insecure,no_subtree_check,anonuid=1000,anongid=1000) /opt/MMDVMDash 192.168.1.123(rw,async,all_squash,insecure,no_subtree_check,anonuid=1000,anongid=1000)
So we allow
192.168.1.123 read- and write-access to the directories above.
/etc/hosts.allow to grant access for your network or host.
# file: "/etc/hosts.allow" ALL: 192.168.1.123
After we changed the contents of
/etc/exports we have to run the
command and restart the nfs-server.
$ sudo exportfs -ra $ sudo systemctl restart nfs-server.service
Accessing the directories #
I usually look at the logs on my Raspberry Pi with
journalctl -fe and let
Now on my laptop in my home directory. I create a temporary directory with
mkdir tmp and try to mount the nfs share into that. On most linux systems
only root is allowed to use mount without an entry in
So we run
$ sudo mount 192.168.1.124:/var/www/html tmp/
and if it does not print anything, all is good. On the Raspberry Pi you should see a new line looking like:
raspi4 rpc.mountd: authenticated mount request from 192.168.1.123:894 for /opt/MMDVMDash/html (/opt/MMDVMDash/html)
/var/www/htmlbut the log shows
/opt/MMDVMDash/html. This is because
/var/www/htmlis currently a symbolic link to
/opt/MMDVMDash/html. But if I remove the symlink and replace it with real files the export will still work.
And that’s it. Unmount with
sudo umount tmp/ and we should create an entry
/etc/fstab file to let the system mount this share when starting.
When unmounting, you should see another line on your Raspberry Pi.
raspi4 rpc.mountd: authenticated unmount request from 192.168.1.123:696 for /opt/MMDVMDash/html (/opt/MMDVMDash/html)
Creating entries in our
/etc/fstab file #
First, let us create a directory on our laptop.
$ mkdir -p ~/raspi4/html
# file: "/etc/fstab" 192.168.1.124:/var/www/html /home/dominic/raspi4/html nfs noauto,users,nodev,async,soft,_netdev,x-systemd.automount,x-systemd.device-timeout=1,x-systemd-idle-timeout=1min,x-systemd.mount-timeout=10,timeo=10,retry=3 0 0
After changing that file, make sure to reload Systemd with
sudo systemctl daemon-reload.
Mount them from your home directory with
mount raspi4/html. The same line
should appear on your Raspberry Pi (if you still have
journalctl -fe running!).
You may use less confusing settings in your
fstab file, but I’m going with
those from above on my Manjaro box, as I also use other NFS shares on my NAS and
it turned out those work best for my scenario for now.
You could try by only using
noauto,users,nodev,async as a starting point. If
it fails, try adding only
_netdev first – I can’t exactly remember why, but I
keep thinking I researched this a while back and sticked with it.