Why can't I automount NFS directory using systemd units?

[Individual-Heart-719]

I’ve created a shared folder like the following:

server ❯ sudo cat /etc/fstab
/run/media/user/X /srv/nfs/X none bind 0 0
server ❯ sudo mount -a
client ❯ sudo mkdir -p /data/nfs/X
client ❯ sudo cat /etc/systemd/system/data-nfs-X.mount
[Unit]
Description=Shared partition X
After=network.target

[Mount]
What=192.168.1.122:/nfs/X
Where=/data/nfs/X
Type=nfs
Options=_netdev,auto

[Install]
WantedBy=multi-user.target
client ❯ sudo systemctl enable data-nfs-X.mount
client ❯ sudo cat /etc/systemd/system/data-nfs-X.automount
[Unit]
Description=Automount shared partition X
ConditionPathExists=/data/nfs/X

[Automount]
Where=/data/nfs/X
TimeoutIdleSec=10

[Install]
WantedBy=multi-user.target
client ❯ sudo systemctl enable --now data-nfs-X.automount
client ❯ ls /data/nfs/X
ls: no se puede abrir el directorio '/data/nfs/X': No existe el dispositivo
client ❯ sudo mount -t nfs 192.168.1.122:/X /data/nfs/X

Why can I mount the folder manually but I can’t do it with systemd units?

[Mirdarthos]

Hi @Individual-Heart-719,

I’ve never done anything with NFS, always had to use SAMBA, but I know you should:

1. Not have anything mounted in /run, as /run is volatile and not for permanent mounts. Rather use /mnt, that’s what it’s there for.
2. Don’t have any entries for the drive both in /etc/fstab and a systemd unit for it. Choose 1 option only. I recommend systemd units. Mine works like an absolute charm.
3. Rather use the IP address for the NFS share.

See:

[root tip] Use systemd to mount ANY device

Difficulty: ★☆☆☆☆ Disk device recognition Manjaro uses udev (see Arch Wiki) to load devices at boot time. The loading of devices is arbitrary and therefore you cannot predict which device will be available at a given path. But static device names do exist and you can assign specific locations to your device and thus ensure e.g. scripts will work as expected. What to learn Overview of system mount units Structure and Content of a mount unit Mount at boot (immediate mount) Mount on demand (m…

and

[root tip] systemd mount unit samples

Difficulty: ★★☆☆☆ Example mount units for systemd The examples here are a supplement to the guide on systemd mount units Remember to remove the comments placed in the units - they are not writting for copy-paste but as examples. (comments is text beginning with a #) [root tip] Use systemd to mount ANY device Only use an automount unit if the device is not readily available at boot like removable devices and network locations. Important rule Fo…

Hope it helps!

[xabbu]

@Individual-Heart-719

server ❯ sudo cat /etc/fstab
/run/media/user/X /srv/nfs/X none bind 0 0

Do not do this. It will not always work as expected. Do not use /run/ for anything expect USB thumb-drive you mount with via a GUI program.

@Individual-Heart-719

What=192.168.1.122:/nfs/X

@Individual-Heart-719

192.168.1.122:/X

Does not look like the same.

@Individual-Heart-719

sudo systemctl enable data-nfs-X.mount

Do not enable it, if you want to use automount. Disable it, just enable the automount.