installation problem: ext2-fs: ps3da1: couldn`t mount because of unsupporte=d optional features (240)

[Mr. Adam Bartnik]

Hello
I download Fedora 12 ppc
and i try install on ps3
instalation was going fine
after instalation complet i was asked to reboot system i press ok
and mow i have that massage : 3 time and ps3 stop
ext2-fs: ps3da1: couldn`t mount because of unsupported optional features (240)
ext2-fs: ps3da1: couldn`t mount because of unsupported optional features (240) 
ext2-fs: ps3da1: couldn`t mount because of unsupported optional features (240)
i don't know exaxlcy what that mean if any one can advice me please
Thankyou in advance Adam.