So I recently decided to but Ubuntu 7.10 Gutsy onto my PS3, but, as expected, it didn't work out.
I have already partitioned my PS3 with OtherOS and burned Ubuntu onto a disc (I'm sure it is the one meant for the PS3, since it was on the site I used) and popped it into the PS3, and then came to the Kbooter which it is supposed to. Except instead of just prompting me to install, I got this message:

(not my picture, but the same error)
And I have no idea how to get it to find rootfs. If anyone could help, that would be awesome!
Thanks.