Description of problem:

When a new kernel shows in updates then yum installs it, as expected,
and on x86 installation prints:

Kernel Updated/Installed, checking for bootloader
Grub found - making this kernel the default

and indeed does that.  On a test x86_64 installation that message
is different:

Kernel Updated/Installed, checking for bootloader
No bootloader found, Cannot configure kernel, continuing.

This is after a new kernel was placed in /boot, its initrd
made up and a corresponding stanza added to /boot/grub/grub.conf.
Only a "making this kernel the default" step is missing.
I am not sure how yum is searching for a boot loader but
/boot/grub/grub.conf are quite similar between x86 and x86_64.

I did not not notice that effect on FC2 but only in development
series.  Not a very big deal at this stage but curious
inconsistency.

Version-Release number of selected component (if applicable):
yum-2.0.7-1.1

How reproducible:
Always