Paul, Thanks for the reply. I guess I'll give the upgrade a try with the "Skip boot loader updating" and see if that works. I suppose the worse case situation would be that I need to resort to the linux rescue cd mode and manually install the boot loader myself. I am very surprised that no one has seems to have run into this before. Surely I'm not alone in using a RAID-1 boot partition. So far I can't find any messages about this exact issue in the mailing list. Jack ps I wonder what "Create a new boot loader" would do. I considered trying that but if anaconda is too stupid not to find the boot loader to upgrade I have serious doubts that it is smart enough to find where to properly install it when /boot is RAID-1. Also there is no documentation in the Installation guide on how the "Create a new boot loader" picks a location. That is does it ask for a location or blindly installed the boot loader on what it considers to be the boot disk. Also might screw up any of the md partitions?