Hi,

systemd can mount cifs filesystems at boot or on demand like autofs.

First cifs mount at boot time. Determine the share and the mount point.

For example:

Export: 192.168.56.1:/mp
Local mountpoint: /mnt/mp

Create the mount point

root@debdev:~# mkdir /mnt/mp

Create the systemd definition file. The Folder for custom systemd unit files is /etc/systemd/system.

Create a new file mnt-mp.mount in the diretory /etc/systemd/system. The filename must contain the mountpointname where the slashes are replaced with “minus”. Filename for /mnt/mp => mnt-mp.mount

If this does not match you will get an error like:

root@debdev:~# journalctl |grep storage
mnt-mp.mount's Where= setting doesn't match unit name. Refusing.


This is a working unit

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

[Mount]
  What=192.168.56.1:/mp
  Where=/mnt/mp
  Options=
  Type=nfs

[Install]
  WantedBy=multi-user.target

Enable the previous defined config and check if error occurs.

systemctl enable mnt-mp.mount
systemctl status mnt-mp.mount


To mount and unmount your share start or stop the unit.

root@debdev:~# systemctl start mnt-mp.mount
root@debdev:~# mount|grep 192


192.168.56.1:/mp on /mnt/mp type nfs (rw,relatime,...
root@debdev:~# systemctl stop mnt-mp.mount


If you make changes to your unit file while its still active, call

systemctl daemon-reload

to reload it.

It’s also possible to mount your share just on demand. Like an automounter.

Define your mount unit mnt-mp.mount like above but do not enable it via systemctl.

Create an automount unit /etc/systemd/system/mnt-mp.automount. The automount unit starts the mount unit (mnt-mp.mount) on demand.

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

[Automount]
  Where=/mnt/mp
  TimeoutIdleSec=10

[Install]
  WantedBy=multi-user.target

Enable the automount unit

systemctl enable mnt-mp.automount

This will create an autofs entry in the mount tab

root@debdev:~# mount|grep systemd
systemd-1 on /mnt/mp type autofs (rw,relatime,fd=27,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)


root@debdev:~# systemctl status mnt-mp.automount
● mnt-mp.automount - nfs mount script
Loaded: loaded (/etc/systemd/system/mnt-mp.automount; enabled)
Active: active (running) since Fr 2016-03-18 12:21:37 CET; 9min ago
Where: /mnt/mp

and browse to the mountpoint and see what happens:

root@debdev:~ # ls -l /mnt/mp/Andreas/Adoring_Human_Flesh/
-rwxr-xr-x 1 root root 9361449 Mai 2 2015 ZOOM0041.MP3
-rwxr-xr-x 1 root root 6881906 Mai 2 2015 ZOOM0045.MP3
-rwxr-xr-x 1 root root 5959680 Mai 2 2015 ZOOM0046.MP3
-rwxr-xr-x 1 root root 5880058 Mai 2 2015 ZOOM0051.MP3


Michael