NFS and CIFS mounts with systemd

Martin Wimpress

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I have an NFS server at home and at work we have Windows (not Samba) servers. When I first switched to systemd I noticed that boot and shutdown were seriously delayed while NFS and CIFS were mounted/unmounted. systemd was designed to eliminate those kinds of delays, so I did some research to find out how to correctly mount NFS and CIFS using systemd.

systemd friendly fstab

Below are some example /etc/fstab entries for NFS and CIFS mounts that are systemd friendly, the pertinent mount options are:

  • noauto,x-systemd.automount,_netdev

I found that noauto,x-systemd.automount improved the boot performance and _netdev improved the shutdown performance.

NFS

This is typically what I have use for mounting my home NAS.

nfs-server:/SomeData /media/SomeData nfs defaults,noauto,x-systemd.automount,_netdev,noatime 0 0

CIFS

This is what I use at work to work correctly with Windows Server.

//cifs-server/MoreData /media/MoreData cifs defaults,noauto,x-systemd.automount,_netdev,rw,noperm,credentials=/home/username/.smb-credentials 0 0

The contents of the credentials file looks something like this.

username=yourusername
password=yourpassword
domain=COMPANYDOMAIN

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