bootable ISO. HP machines (like the rx2600) that (also) have isp(4)
may have a non-standard firmware on the controller. Our isp(4) driver
is not able to work with those and even panics. This makes installing
FreeBSD rather impossible. By adding the ispfw.ko module, we give the
user a chance to upload a certified firmware onto the card and so make
it possible to either use the isp(4) successfully or otherwise avoid
the panic.