[SOLVED] NFS - Automount

vorlket · 2024-01-01 20:58:18

I have two machines: server and miniserver and ran the following commands

server:

sudo pacman -S openmpi
cd ~/.ssh
ssh-keygen -t rsa
cp id_rsa.pub authorized_keys
chmod 600 authorized_key
sssh-copy-id miniserver
sudo vi /etc/ssh/sshd_config: Add the following lines
	PubkeyAuthentication yes
	RSAAuthentication yes
sudo pacman -S ntp
sudo vi /etc/ntp.conf: Add the following lines
	tos orphan 15
	logfile /var/log/ntp.log
sudo ntpd -u ntp:ntp
sudo systemctl start ntpd.service
sudo systemctl enable ntpd.service
sudo pacman -S nfs-utils
mkdir ~/sharedfolder
chmod 777 ~/sharedfolder
sudo vi /etc/exports:
	/home/vorlket/sharedfolder      miniserver(rw,sync)
sudo exportfs -arv
sudo systemctl start nfs-server.service
sudo systemctl enable nfs-server.service

miniserver:

sudo pacman -S openmpi
cd ~/.ssh
ssh-keygen -t rsa
cp id_rsa.pub authorized_keys
chmod 600 authorized_key
sssh-copy-id server
sudo vi /etc/ssh/sshd_config:
	PubkeyAuthentication yes
	RSAAuthentication yes
sudo pacman -S ntp
sudo pacman -S nfs-utils
mkdir ~/sharedfolder
chmod 777 ~/sharedfolder
sudo mount server:/home/vorlket/sharedfolder /home/vorlket/sharedfolder

Now, I want to know how to automount the nfs on miniserver on startup.

Last edited by vorlket (2024-01-03 10:02:51)

thorstenhirsch · 2024-01-01 21:45:58

Write a unit file on miniserver like this one and save it as /etc/systemd/system/sharedfolder.mount:

[Unit]
Description=mount sharedfolder
Requires=network-online.target
After=network-online.service

[Mount]
What= server:/home/vorlket/sharedfolder
Where=/home/vorlket/sharedfolder
Type=nfs
Options=rw,timeo=10,rsize=131072,wsize=131072,noatime,hard
# Uncomment the below if your server is real slow
TimeoutSec=10

[Install]
WantedBy=multi-user.target

And additionally /etc/systemd/system/sharedfolder.automount:

[Unit]
Description=sharedfolder.mount automounter
Requires=network-online.target

[Automount]
Where=/home/vorlket/sharedfolder
TimeoutIdleSec=5m

[Install]
WantedBy=multi-user.target

And then enable only the automount. It will trigger the mount.

P.S.: As you can see "Where" is duplicated... not sure if you can remove it in one of the files.

Last edited by thorstenhirsch (2024-01-01 21:46:31)

seth · 2024-01-01 22:36:56

nb. the caveats on "network-online.target", neither networkmanager nor networkd default to what you'd expect as sane behavior and will trigger the target before there's an actual network connection established.
https://wiki.archlinux.org/title/System … work_is_up
https://wiki.archlinux.org/title/Networ … ait-online
https://wiki.archlinux.org/title/System … ait-online (esp. the blue box on the top)

vorlket · 2024-01-02 02:07:22

I'm using netctl. I'm confused by @seth's comment. I understand that we want the nfs automount after the network is up. Do I still need @thorstenhirsch's scripts above?

Last edited by vorlket (2024-01-02 02:54:30)

seth · 2024-01-02 09:56:48

I'm using netctl.

First link.

You don't need any custom service, an fstab entry will do: https://wiki.archlinux.org/title/NFS#Mo … /etc/fstab
nb. that the same network-online problems apply (_netdev waits for that target, but the target implementation is wonky)

W/ somewhat unsteady FS I'd personally always recommend to mount them on access: https://wiki.archlinux.org/title/NFS#Mo … th_systemd
You then also don't have to worry about _netdev/network-online, if you try to access the FS w/o a network that's a user error and will always result in a stall or error (soft/hard timeout)

vorlket · 2024-01-03 04:58:00

[vorlket@miniserver ~]$ ls -l sharedfolder/
ls: cannot access 'sharedfolder/': No such device

server:

sudo pacman -S nfs-utils
mkdir ~/sharedfolder
chmod 777 ~/sharedfolder
sudo vi /etc/exports:
	/home/vorlket/sharedfolder      miniserver(rw,sync)
sudo exportfs -arv
sudo systemctl start nfs-server.service
sudo systemctl enable nfs-server.service
sudo vi /etc/nfs.conf:
	[nfsd]
	host=192.168.1.2
sudo systemctl restart nfs-server.service
sudo vi /etc/iptables/iptables.rules:
	-A INPUT -p tcp -m tcp --dport 111 -j ACCEPT
        -A INPUT -p tcp -m tcp --dport 2049 -j ACCEPT
        -A INPUT -p tcp -m tcp --dport 20048 -j ACCEPT
        -A INPUT -p udp -m udp --dport 111 -j ACCEPT
        -A INPUT -p udp -m udp --dport 2049 -j ACCEPT
        -A INPUT -p udp -m udp --dport 20048 -j ACCEPT
        -A INPUT -p tcp -m tcp --dport 32765 -j ACCEPT
        -A INPUT -p tcp -m tcp --dport 32803 -j ACCEPT
        -A INPUT -p udp -m udp --dport 32765 -j ACCEPT
        -A INPUT -p udp -m udp --dport 32803 -j ACCEPT
sudo systemctl start iptables.service
sudo systemctl enable iptables.service

miniserver:

sudo pacman -S nfs-utils
mkdir ~/sharedfolder
chmod 777 ~/sharedfolder
sudo vi /etc/fstab:
	server:/home/vorlket/sharedfolder       /home/vorlket/sharedfolder      nfs  _ne
tdev,noauto,x-systemd.automount,x-systemd.mount-timeout=10,timeo=14,x-systemd.id
le-timeout=1min 0 0
sudo systemctl daemon-reload
sudo systemctl restart remote-fs.target

Last edited by vorlket (2024-01-03 04:59:01)

seth · 2024-01-03 08:21:33

There's a stray newline in your fstab - or you copypasted that out of a linebreaking editor.
Remove the _netdev stance and manually check whether you can reach/mount the exports *at all*, https://wiki.archlinux.org/title/NFS#Client

vorlket · 2024-01-03 10:01:54

I removed the following on server and it works:

sudo vi /etc/nfs.conf:
	[nfsd]
	host=192.168.1.2
sudo vi /etc/iptables/iptables.rules:
	-A INPUT -p tcp -m tcp --dport 111 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 2049 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 20048 -j ACCEPT
-A INPUT -p udp -m udp --dport 111 -j ACCEPT
-A INPUT -p udp -m udp --dport 2049 -j ACCEPT
-A INPUT -p udp -m udp --dport 20048 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 32765 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 32803 -j ACCEPT
-A INPUT -p udp -m udp --dport 32765 -j ACCEPT
-A INPUT -p udp -m udp --dport 32803 -j ACCEPT

Arch Linux

#1 2024-01-01 20:58:18

[SOLVED] NFS - Automount

#2 2024-01-01 21:45:58

Re: [SOLVED] NFS - Automount

#3 2024-01-01 22:36:56

Re: [SOLVED] NFS - Automount

#4 2024-01-02 02:07:22

Re: [SOLVED] NFS - Automount

#5 2024-01-02 09:56:48

Re: [SOLVED] NFS - Automount

#6 2024-01-03 04:58:00

Re: [SOLVED] NFS - Automount

#7 2024-01-03 08:21:33

Re: [SOLVED] NFS - Automount

#8 2024-01-03 10:01:54

Re: [SOLVED] NFS - Automount

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