Booting into a different entry without changing grub.conf

[Mark Ryden]

Hello,

I have in my grub.conf this entry: default=0.
This entry has the original kernel and initrd which came with my Linux
distribution.
Instead of booting to the first entry (default=0) , I want to reboot into the
second entry (which will point to a linux kernel I had build myself
for tests).
; but **withouth** changing the (default=0) entry
in grub.conf to the second grub entry (which contains paths to images which
are selected for boot when default=1); this because in
case I will have a panic when booting (which sometimes occur, for
various reasons)
, I want to be able to reboot the machine immedaitely back to default=0.
(In order that I will NOT have the panic again)
Is it possible ?

Regards,
Mark Ryden