I have a machine that I built up on SLES SP2 and only after I spent a bunch of time configuring it, did I realize I was a moron and left it on reiser insted of ext3. I have copied the root filesystem to an identical drive (leaving out dev sys and proc) that is ext3, and I know I need to fix grub and/or the MBR, but I just lack the knowledge of how to get that step done.

Help please