You can also use ConditionKernelVersion like so
/etc/systemd/system/{vboxadd,vboxadd-service}.service.d/kerver.conf
-------------------------------------------------
[Unit]
ConditionKernelVersion=<4.15
Giacomo Longo
2018-02-11 13:47 GMT+01:00 Giacomo Longo <gabibbo97@xxxxxxxxx>:
> So you want to have
>
> vboxadd-service and vboxadd systemd services not starting on Linux kernel
> versions 4.15 and above?
>
> You can manage this by creating a template systemd unit
>
> /etc/systemd/system/kernel-version-less-then@.service
> -----------------------------------
> [Unit]
> Description=Check if currently installed kernel version is less than target
>
> [Service]
> Type=oneshot
> ExecStart=/usr/bin/sh -c '[[ "$(/usr/bin/vercmp %i %v)" = "1" ]]'
> Restart=no
> CollectMode=inactive-or-failed
>
> [Install]
> WantedBy=multi-user.target
>
> Then create the directories
>
> /etc/systemd/system/vboxadd.service.d/
> /etc/systemd/system/vboxadd-service.service.d/
>
> Then for each service
>
>
> /etc/systemd/system/vboxadd.service.d/kerver.conf
> -------------------------------------------------
> [Unit]
> After=kernel-version-less-then@4.15.service
> Requires=kernel-version-less-then@4.15.service
>
> /etc/systemd/system/vboxadd-service.service.d/kerver.conf
> ---------------------------------------------------------
> [Unit]
> After=kernel-version-less-then@4.15.service
> Requires=kernel-version-less-then@4.15.service
>
> In this way, if my bash-fu is correct, the version compare will fail the
> kernel-version-less-then@4.15.service and vboxadd and vboxadd-service
> will not start
>
> Giacomo Longo
>
