Ok. Another question. The more I read, the more I'm understanding, but I'm not there yet.

I used PB's "Clone OS to SD" deb on my n810 and can now boot 30-2 from internal mmc. My installed application menu on internal flash shows no bootmenu-installer. Can I safely install this in internal flash (having already backed up my bootmenu.conf to the external SD)? I ask because I'd like to set this up and THEN try to update both internal flash and internal mmc to 36-5.

Thanks.