Although you can still place entries in /etc/fstab, file system mounts can be created using
a systemd mount unit, as follows.
A filesystem mount can be defined in a unit file of type mount.
Traditionally, mounts are defined in the file /etc/fstab, and this file can still be used.
Note that entries in /etc/fstab are dynamically converted in to unit files when the file is read during booting.
There are conflicting views on which method should be used.
The /etc/fstab method is well known, so we will cover a mount example using a systemd unit file.
This example mounts /dev/sdb1, containing an XFS file system, on /oradata.
# cd /etc/systemd/system
# vi oradata.mount
Insert the following entries in oradata.mount:-
Description = Mount for Oracle DB
What = /dev/sdb1
Where = /oradata
Type = xfs
Options = uqnoenforce
WantedBy = local-fs.target
The mount unit name must be the same as the Where value, e.g. if you are mounting on /oradata,
then the mount unit name must be oradata.mount. See below for more complex mount points.
The What value can be a UUID, but use the full path as found in /dev/disk/by-uuid, not the /etc/fstab format.
We now have to run:-
# systemctl daemon-reload
# systemctl enable oradata.mount
# systemctl start oradata.mount
# systemctl status oradata.mount
● oradata.mount - Mount for Oracle DB
Loaded: loaded (/etc/systemd/system/oradata.mount; enabled; vendor preset: disabled)
Active: active (mounted) since Wed 2016-06-01 11:05:45 BST; 20s ago
Process: 31073 ExecMount=/bin/mount /dev/sdb1 /oradata -n -t xfs -o uqnoenforce (code=exited, status=0/SUCCESS)
Jun 01 11:05:45 buzz systemd: Mounting Mount for Oracle DB...
Jun 01 11:05:45 buzz systemd: Mounted Mount for Oracle DB.
Note that the uqnoenforce option turns on disk quotas, but does not enforce any limits.
It is used this way for reporting purposes.
Finally, if you wish to have a mount point /export/home/joe, then the mount unit must be called export-home-joe.mount.
We hope this has been useful, see below for additional notes
Mick Hosegood - First Alternative.