I haven't been able to get it to work with Gentoo either. I think there is just some problem with the kernel. I suggest following the guides here instead of going your own way, then you can ask specific questions.
with all respect for this guide there is no problem with the kernel, i installed gentoo and worked fine but as i told i can't mount the blue-ray movies.
BTW: the most hard part in gentoo installation, you have to do the procedure manually step by step after that you'll get the fastest linux distro on your PS3.
i installed gentoo and worked fine but as i told i can't mount the blue-ray movies.
it is impossible to "mount a bluray movie". you can only do the following:
i) mount the disk as UDF
ii) copy encrypted movie
iii) dump volume id using specialized software, such as dumpvid (not available on ps3 linux) or aacskeys (again, not on ps3 linux).
iv) search google for MKB of the movie
v) provide dumphd with these volume id & MKB
after all these steps you will obtain unencrypted film.
there is also possibility that your film is BD+-infected. in this case try the last version of dumphd (it may work or not).