Comment # 1 on bug 1149701 from Ignaz Forster

For clarification: Currently there is no user interaction required (i.e. not
"manually" in the sense of "the user has to change it"). An educated guess of
the platform will be performed by the package's post script on regular
installations and by setting the kernel parameters in KIWI.

As long as KIWI will continue building a separate image for each platform this
is working reasonably fine, but implementing this in Ignition itself would
definitely be the better way from our perspective. This will need to be
discussed with the upstream project.