tinsukE

I have a service that pings the server:

cat <<EOF | sudo tee /etc/systemd/system/ping-smb.service
[Unit]
Description=Blocks until pinging 192.168.1.10 succeeds
After=network-online.target
StartLimitIntervalSec=0

[Service]
Type=oneshot
ExecStart=ping -c1 192.168.1.10
Restart=on-failure
RestartSec=1

[Install]
WantedBy=multi-user.target
EOF

sudo systemctl enable ping-smb.service

And then I make the fstab entry depend on it:

x-systemd.requires=ping-smb.service