Oracle Linux - How to mount a SMB/CIFS Share using SYSTEMD

APPLIES TO:

Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9]

Linux x86_64 on Oracle Public Cloud

 

GOAL:

Mount a SMB/CIFS share using SYSTEMD as it will give more flexible configurations. It enables you to stage dependencies when mounting if needed.

SOLUTION:

This HOWTO assumes a SMB/CIFS Server is already configured and Firewall rules allow connections among Server and Clients.

 

[root@alejanarol7 ~]$ rpmquery cifs-utils
cifs-utils-6.2-10.el7.x86_64
 
[root@alejanarol7 ~]# smbclient -L 10.0.100.123 -N
Anonymous login successful
 
       Sharename      Type     Comment
       ---------      ----     -------
       MyShare        Disk     My Shared Folder
       IPC$           IPC      IPC Service (Samba 4.17.5)
 
 
[root@alejanarol7 ~]# smbclient //10.0.100.123/MyShare -U nobody -L
Enter SAMBA\nobody's password:
Try "help" to get a list of possible commands.
smb: \> ls
 .                                  D       0 Thu Jun 29 02:51:16 2023
 ..                                 D       0 Thu Jun 29 02:23:46 2023
 mybigfile.out                      A 10485760000 Thu Jun 29 02:54:11 2023
 
               37177616 blocks of size 1024. 6190764 blocks available
smb: \> quit
 
 
[root@alejanarol7 ~]$ cat > /etc/mysmb.cred << EOF
user=nobody
password=nobody
EOF
 
[root@alejanarol7 ~]$ chmod 600 /etc/mysmb.cred
 
[root@alejanarol7 ~]$cat > /etc/systemd/system/mySMB.mount << EOF
[Unit]
Description=My SMB Share
Documentation=https://www.homeluna.net
After=network.target
 
[Mount]
What=//10.0.100.123/MyShare
Where=/mySMB
Type=cifs
Options=credentials=/etc/mysmb.cred,vers=3.1.1
TimeoutSec=30
 
[Install]
WantedBy=multi-user.target
EOF
 
[root@alejanarol7 ~]# systemctl daemon-reload && systemctl enable mySMB.mount
Created symlink from /etc/systemd/system/multi-user.target.wants/mySMB.mount to /etc/systemd/system/mySMB.mount.
 
[root@alejanarol7 ~]# systemctl restart mySMB.mount
 
[opc@alejanarol7 ~]$ systemctl status mySMB.mount
● mySMB.mount - My SMB Share
  Loaded: loaded (/etc/systemd/system/mySMB.mount;