Someone

default=0
timeout=30
splashimage=(hd1,0)/boot/grub/splash.xpm.gz

title=Gentoo Linux 2.6.19.gentoo-r5
root (hd0,0)
kernel /kernel-2.6.19.gentoo-r5 root=/dev/hda3 vga=0x318 video=vesafb:mtrr:3,ywrap
#kernel /kernel-2.6.19.gentoo-r5 root=(hd0,2) vga=0x318 video=vesafb:mtrr:3,ywrap

title=Gentoo Linux 2.6.19-gentoo-r5 (rescue)
root (hd0,0)
kernel /kernel-2.6.19.gentoo-r5 root=/dev/hda3 init=/bin/bb vga=0x318 video=vesafb:mtrr:3,ywrap

and this is fdisk -l /dev/hda
/dev/hda1   *           1           5       40131   83  Linux (boot)
/dev/hda2               6          91      690795   83  Linux (swap)
/dev/hda3              92         216     1004062+  83  Linux (root)
/dev/hda4             217        4982    38282895    5  Extended
/dev/hda5             217        2041    14659281   83  Linux (usr)
/dev/hda6            2042        2407     2939863+  83  Linux (var)
/dev/hda7            2408        2894     3911796   83  Linux (opt)
/dev/hda8            2895        4982    16771828+  83  Linux (home)