kernel-debug F12\13\14 grub

[Gilles J. Seguin]

On Thu, 2010-09-30 at 13:49 +0100, Frank Murphy wrote: 
> How can I get my testing boxes to boot from newest kernel-debug?
> 
> I have to manually edir /boot/grub/menu.lst
> to default=0, after each kernel-debug update.
> as it always resets itself to default=1
> 
> This happens across all current F12\13\14 updates-testing
> x86\x86_64 boxes,
> and any koji kernel-debug manually installed.

i am also fighting to understand the behavior of this menu.
And what does "grub-install /dev/sda".
on x86_64 too.