.... I have used Mag. blocks and found that as long as its not windy and you have a good file they work rather easily.
Thanks again for all your ideas and for the warm welcome.
Then you should be sheltering your fire a bit. Wind screen if windy, roof if raining.
My problem with a lot of the primitive methods is if it is damp out they are much harder to make work.
Dry tinder matters a lot.