Comment 1 for bug 1854582

This isn't exactly the same issue as bug 1849156 (that is about ntp condition check conflict, this is virtualbox), but it's close enough as the cause is the same - the drop-in file simply checking for the presence of specific executable files, instead of checking for running process/service.

I'm duping to that bug, but if you disagree please feel free to un-dup.