RAID-1 boot partition and FC2->FC4 upgrade

[Jack Howarth]

Justin,
    I assume you upgraded a system to FC4 with a RAID-1 boot
partition, right? I am still unclear on is what to do in
the step where anaconda wants to upgrade the boot loader...

http://fedora.redhat.com/docs/fedora-install-guide-en/fc4/ch04s02.html

On my FC2 box, the FC4 installer claims that no suitable boot loader
could be found to be upgraded so that the "Update boot loader configuration"
item is dimmed. I can only "Skip boot loader updating" or
"Create a new boot loader configuration". Skipping seems unreasonable
since I won't be able to boot into FC4. That leaves creating a new
boot loader configuration. I didn't try that yet but I would hope
I could select the /dev/md0 partition which has the boot loader 
currently on it. Even if I can select the /dev/md0 partition to
install a new boot loader on it, it still is unclear if the contents
of /boot will be erased or if the boot loader files will just be
installed over the current ones (leaving the old kernel files behind).
I am worried about trying this without some more information since
it is unclear if I can abort out to the process once I click Next
after I select the Create new boot loader configuration.
               Jack