Share /boot between fc3 and fc5?

[Kenneth Porter]

--On Saturday, March 11, 2006 9:38 AM -0500 Tony Nelson 
<tonynelson at georgeanelson.com> wrote:

> Should I have it put everything in the LVM partition and
> copy the relevent files from its /boot to the real one, and modify the
> grub.conf by hand?

Don't share boot. Share boot/grub. Pick one to be the "real" boot/grub and 
after you've installed the 2nd OS, use a loop mount to mount the 
authoritative boot/grub over boot/grub on the other OS. Then, when you 
update kernels on the other OS, the install script will update grub.conf in 
the authoritative boot directory.

I'm doing essentially this, but with FC4 i386 on one partition and x86_64 
on the other. The tedious part is that I have to hand-edit the grub entry 
after a kernel upgrade to indicate which entries are which partition. They 
both say "Fedora Core 4" (and the kernel version) but not the arch.