i am experienced with linux. I think the simplified nature of these instructions is perplexing. 1. Can i boot from the external SD card? (instructions seem to always assume internal) 2. Why do we need the vfat partiition on the front of the flash disk? 3. Why not create a more ordinary partition arrangement, as on a full linux system. Separate partition for /home, Especially. That would allow us to protect docs while replacing OS. TIA PJ