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a CIFS network location is mounted via /etc/fstab to /mnt/ on boot-up.

No, it is not. Get this right, and the rest falls into place naturally.

The mount is handled by a (generated) systemd mount unit that will be named something like mnt-wibble.mount. You can see its actual name in the output of systemctl list-units --type=mount command. You can look at it in detail just like any other unit with systemctl status.

Very simply, then: you have to order your unit to be started after that mount unit is started.

After=network.target vpn-launch.service mnt-wibble.mount

Further reading

• https://unix.stackexchange.com/a/236968/5132

a CIFS network location is mounted via /etc/fstab to /mnt/ on boot-up.

No, it is not. Get this right, and the rest falls into place naturally.

The mount is handled by a (generated) systemd mount unit that will be named something like mnt-wibble.mount. You can see its actual name in the output of the follwoing command:

systemctl list-units --type=mount

You can look at it in detail just like any other unit with:

systemctl status

Very simply, then: you have to order your unit to be started after that mount unit is started.

After=network.target vpn-launch.service mnt-wibble.mount

Further reading

• https://unix.stackexchange.com/a/236968/5132

a CIFS network location is mounted via /etc/fstab to /mnt/ on boot-up.

No, it is not. Get this right, and the rest falls into place naturally.

The mount is handled by a (generated) systemd mount unit that will be named something like mnt-wibble.mount. You can see its actual name in the output of the systemctl command. You can look at it in detail just like any other unit with systemctl status.

Very simply, then: you have to order your unit to be started after that mount unit is started.

After=network.target vpn-launch.service mnt-wibble.mount

Further reading

• https://unix.stackexchange.com/a/236968/5132

a CIFS network location is mounted via /etc/fstab to /mnt/ on boot-up.

No, it is not. Get this right, and the rest falls into place naturally.

The mount is handled by a (generated) systemd mount unit that will be named something like mnt-wibble.mount. You can see its actual name in the output of systemctl list-units --type=mount command. You can look at it in detail just like any other unit with systemctl status.

Very simply, then: you have to order your unit to be started after that mount unit is started.

After=network.target vpn-launch.service mnt-wibble.mount

Further reading

• https://unix.stackexchange.com/a/236968/5132

a CIFS network location is mounted via /etc/fstab to /mnt/ on boot-up.

No, it is not. Get this right, and the rest falls into place naturally.

The mount is handled by a (generated) systemd mount unit that will be named something like mnt-wibble.mount. You can see its actual name in the output of the systemctl command. You can look at it in detail just like any other unit with systemctl status.

Very simply, then: you have to order your unit to be started after that mount unit is started.

After=network.target vpn-launch.service mnt-wibble.mount

Further reading

• http://unix.stackexchange.com/a/236968/5132

a CIFS network location is mounted via /etc/fstab to /mnt/ on boot-up.

No, it is not. Get this right, and the rest falls into place naturally.

The mount is handled by a (generated) systemd mount unit that will be named something like mnt-wibble.mount. You can see its actual name in the output of the systemctl command. You can look at it in detail just like any other unit with systemctl status.

Very simply, then: you have to order your unit to be started after that mount unit is started.

After=network.target vpn-launch.service mnt-wibble.mount

Further reading

• https://unix.stackexchange.com/a/236968/5132