I have a PDI 16GB - 120x with mini (1 gen) cannot run with RockBox...
It said that "no partition is found" from bootloader.....
I try every aspects to restore the iPod and make sure it is FAT32 (the data partition) but still get this error.....

OK, I go thr. every steps and then manage to build a new bootloader and fix the compatibilty of PQI CF (16GB)
attached is the new compiled bootloader from SVN, feel free to use (it works for me, but no guarantee, use it at your own risk)
http://rapidshare.com/files/118963851/ipodpatcher_20080531.zip.html