Comment 9 for bug 1044503

> We should be as smart as we can and do everything we can before giving
> users a free-form field in which to enter extra bits of the command line.

I generally disagree with this.
I like the "be as smart as ew can" part, but after that it goes sour.

Accept that you can't know the right parameters for hardware. Make it
configurable via some sort of "free form field".

Other thing to note here, is we want kernel parameters for a node to copy
to the installer's preseed. so that after the installer the system boots
with those parameters.

Example:
 I just did an install where I hacked the cmdline of the
ephemeral/commissioning and install via modifying
  config.commissioning.template and config.install.template
I added 'console=ttyS1,115200'. Those parameters at least possibly should
make it into the preseed data so that the install also gets them. At the
moment that doesn't happen.