Never mind the step 2.
Since you've got nlb installed you can just ftp the multiboot file to /tmp folder. But rename multiboot file to usb_update.img
Then access NLB web interface by etnering ipbox ip in your browser. Use update firmware option or whatever it is called, I haven't used ipbox in a while can't remember exact details.
But in any case it should flash the multiboot file in few seconds.
After that you should be able to choose multiboot options, just make sure you press the button on remote as soon as you see booting on front display.
You can test first by holding number 3 to boot to flash image.
Then you can go on to installing enigma2 on usb stick.
There is few different multiboot files, I know I ran into some that didn't work properly for me. So I've attached one I know works for sure.
