Harald Hoyer (harald(a)redhat.com) said:
I second that. kernel command line paramater would be fine.
The reason a kernel command line option isn't really practical
is that the request is for the times where you don't (necessarily)
know it's going to break until after you booted.
Which leaves having init read a non-standard, non-upstream config
file, which seems just as, if not more, distasteful.
Bill