Hi my livecd phaeronix http://www.phaeronix.net supports reiser4 and resier3 and are the default choices.
It has a patched 2.6.11 kernel, back in the days when IO/CPU performance was really good. It's out of date and I am preparing a new one, also with reiser4 support. But IO performance nowadays is not so good. I am using 2.6.15-archck4. Maybe things will be better in 2.6.16 .. I also had problems with grub starting with 2.6.15 , so I switched to lilo. But I had problems with that too, ( which I described on this mailing list a few days ago ). So now I am using a 50Mb ext2 boot partition. I hope reiser4 "rises" back to expectations again. Thank you :P
