grub.conf emptied, and now i get kernel panic?

[Kahn Seidl]

> > /dev/hda1               1        1912    15358108+   7  HPFS/NTFS
> > /dev/hda2            1913        1925      104422+  83  Linux
> > /dev/hda3   *        1926        3850    15462562+  83  Linux
> > /dev/hda4            3851        7296    27679995    5  Extended
> > /dev/hda5            3851        7296    27679963+  8e  Linux LVM
> >
>


Ok, hda1 is for win xp
hda2 is boot
hda3 is what fc4 was installed on
hda4/5 is the lvm which fc3 is installed on.

i still have access to the lvm through fc4.  when I tried pointing grub to 
hda5 it said cant mount partition.

I installed fc4 because fc3 wasnt working,   I want to get fc3 back and 
uninstall fc4.

Here is my grub.conf

default=0
timeout=5
splashimage=(hd0,2)/boot/grub/splash.xpm.gz
hiddenmenu
title Fedora Core (2.6.11-1.1369_FC4)
        root (hd0,2)
        kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/ rhgb quiet
        initrd /boot/initrd-2.6.11-1.1369_FC4.img
title fc3
        root (hd0,1)
        kernel /vmlinuz-2.6.9-1.667 ro root=LABEL=/ rhgb quiet
        initrd /initrd-2.6.9-1.667.img
title Other
        rootnoverify (hd0,0)
        chainloader +1

I have tried several different variations on that, but always get the kernel 
panic.

Martin