[XP+10.10+Natty] ]boot failure with natty 11.04 alpha-1

I have on 160gb hd, windows xp, Ubuntu 10.10 and Ubuntu 11.04

I installed 11.04 alpha1 on /dev/sda8, then rebooted and tried to run Natty with the following results.

error: no such device: 1e31d....
error: no such partition
error: you need to load the kernel first

press any key
--------------------------------------
contents of grub.cfg using grub-pc
---------------------------------------

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
  insmod vbe
  insmod vga
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 86a480e4-8a34-49c9-8d35-11bc6d859b27
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  load_video
  insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 86a480e4-8a34-49c9-8d35-11bc6d859b27
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ "${recordfail}" = 1 ]; then
  set timeout=-1
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.35-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
 recordfail
 insmod part_msdos
 insmod ext2
 set root='(hd0,msdos5)'
 search --no-floppy --fs-uuid --set 86a480e4-8a34-49c9-8d35-11bc6d859b27
 linux /boot/vmlinuz-2.6.35-24-generic root=UUID=86a480e4-8a34-49c9-8d35-11bc6d859b27 ro quiet splash
 initrd /boot/initrd.img-2.6.35-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
 recordfail
 insmod part_msdos
 insmod ext2
 set root='(hd0,msdos5)'
 search --no-floppy --fs-uuid --set 86a480e4-8a34-49c9-8d35-11bc6d859b27
 echo 'Loading Linux 2.6.35-24-generic ...'
 linux /boot/vmlinuz-2.6.35-24-generic root=UUID=86a480e4-8a34-49c9-8d35-11bc6d859b27 ro single
 echo 'Loading initial ramdisk ...'
 initrd /boot/initrd.img-2.6.35-24-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
 insmod part_msdos
 insmod ext2
 set root='(hd0,msdos5)'
 search --no-floppy --fs-uuid --set 86a480e4-8a34-49c9-8d35-11bc6d859b27
 linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
 insmod part_msdos
 insmod ext2
 set root='(hd0,msdos5)'
 search --no-floppy --fs-uuid --set 86a480e4-8a34-49c9-8d35-11bc6d859b27
 linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" {
 insmod part_msdos
 insmod ntfs
 set root='(hd0,msdos1)'
 search --no-floppy --fs-uuid --set 0c7cd7b77cd799b2
 drivemap -s (hd0) ${root}
 chainloader +1
}
menuentry "Ubuntu, with Linux 2.6.37-7-generic (on /dev/sda8)" {
 insmod part_msdos
 insmod ext2
 set root='(hd0,msdos8)'
 search --no-floppy --fs-uuid --set 1e31d6da-e7b7-43c9-9c81-a4c3b26b9c5d
 linux /boot/vmlinuz-2.6.37-7-generic root=UUID=1e31d6da-e7b7-43c9-9c81-a4c3b26b9c5d ro quiet splash
 initrd /boot/initrd.img-2.6.37-7-generic
}
menuentry "Ubuntu, with Linux 2.6.37-7-generic (recovery mode) (on /dev/sda8)" {
 insmod part_msdos
 insmod ext2
 set root='(hd0,msdos8)'
 search --no-floppy --fs-uuid --set 1e31d6da-e7b7-43c9-9c81-a4c3b26b9c5d
 linux /boot/vmlinuz-2.6.37-7-generic root=UUID=1e31d6da-e7b7-43c9-9c81-a4c3b26b9c5d ro single
 initrd /boot/initrd.img-2.6.37-7-generic
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

Gparted appears to be correct. I have a screen shot but don't know how to attach it.
Thanks