Ok, hold your horses. 😉
the ipkg for the NSLU2 does run with sqlite (i think v3). If you installed the ipkg on a fresh unslung system, you might require other packages.
If you upgraded from 0.2.4 to the latest nightly, same game.
What version of mt-daapd did you upgrade from, if any?
MAke sure you install sqlite and sqlite3 ipkgs. The libc.so.6 I have came with unslung 6.8 itself.
edit:
Und wie ich grad sehe sitzt du in Deutschland. moinmoin also erstmal. 😉