Create a Sparebundle to copy to your NFS/SMB/AFP volume hdiutil create -size $SIZEg -fs HFS+J -type SPARSEBUNDLE -volname "Backup of $MACHINENAME" $MACHINENAME_$MACADDRESS.sparsebundle
Use ifconfig and sub in your $MACHINENAME_$MAC_ADRESS into the sparsebundle filename - Remove the ':' chars
e.g. 0018b31184dd
Use hostname to get your machines hostname - Don't use fqdn Size can be adjusted at a later date if required - g = gigabytes
Copy the budle to the nfs volume cp -rp $MACHINENAME_$MACADDRESS.sparsebundle /Path/to/nfs
Run the defaults command to turn on timemachine for unsupported volumes support (As normal user - don't sudo) defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1
Now go to your System Prefrences and choose time machine
Choose your NFS/SMB/AFP volume as the timemachine disc
