I have created an anaconda update disk that allows one to upgrade a system which uses a ReiserFS RAID root. This update also allows rescue mode to locate and mount a ReiserFS root. If anyone wants to add support for other filesystems, simply follow the pattern I used for ReiserFS: add a function to identify the filesystem superblock, and invoke the new function from two places. See the following URL for details on creating the update disk: http://home.attbi.com/~kfreem02/LinuxTips/ReiserFS-on-RAID.html.
Regards, Kevin
