many folks don't appreciate those who don't try hard enough to search, or couldn't figure out how to find things properly.

a google on "n900 root on emmc" would've returned below link.

"[Announce] Maemo5 running 32GB eMMC root FS (scripts)"
http://talk.maemo.org/showthread.php?t=59374

it may not work for you as is, but has all the details.

i've been tinkering with stuff based on that info & may release my findings for PR1.3 later.

kh