[PLUG] making sd bootable card

[jayant ogale]

hi,
i have macbook pro lap-top with i7 processor.
i am trying to install knoppix [64bit] on a sd card and make it bootable.
i have googled many times and tried atleast 10 to 15 different methods to do so.
but no success. i do not get any errors while transferring knoppix. but then can not boot from sd card.
i know that sd card is not supported directly on macbook pro. one has to install refit. but that also failed.
if anyone has a first hand experience for doing so, please let me know any hitch or pitfall.
alternatively, while booting through refit i can get a shell prompt
shell>>
is it possible on command line to boot from /dev/disk1? does it works?
why i want bootable sd card knoppix can be discussed later.
thanks,
jayant