Grub error : symbol grub_xputs not found

Binary package hint: grub-pc

Hello,

I installed Ubuntu Maverick Desktop AMD 64 with Iso daily file from 07-23.

Burning of CD, start on Live CD, Ubuntu functional dynamics on Live CD are well and work fine.

Installation on hard drive also succeeded.

But when I restart on HDD, it does not boot, just after bios I get a black screen and this message :

error : the symbol 'grub_xputs' not found
grub rescue >

And nothing more...

Files seem to be well copied on hard drive (there are available with Live CD).

Here is the copy of the /boot/grub/grub.cfg file :

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### 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 video_bochs
  insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set a702a4a5-8c6f-40ed-95bc-a031534919c9
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  load_video
  insmod gfxterm
fi
if terminal_output gfxterm ; then true ; else
  # For backward compatibility with versions of terminal.mod that don't
  # understand terminal_output
  terminal gfxterm
fi
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set a702a4a5-8c6f-40ed-95bc-a031534919c9
set locale_dir=($root)/boot/grub/locale
set lang=fr
insmod gettext
if [ "${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 2.6.35-9-generic' --class ubuntu --class gnu-linux --class gnu --class os {
 recordfail
 load_video
 set gfxpayload=keep
 insmod part_msdos
 insmod ext2
 set root='(hd1,msdos1)'
 search --no-floppy --fs-uuid --set a702a4a5-8c6f-40ed-95bc-a031534919c9
 linux /boot/vmlinuz-2.6.35-9-generic root=UUID=a702a4a5-8c6f-40ed-95bc-a031534919c9 ro quiet splash
 initrd /boot/initrd.img-2.6.35-9-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-9-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
 recordfail
 load_video
 set gfxpayload=keep
 insmod part_msdos
 insmod ext2
 set root='(hd1,msdos1)'
 search --no-floppy --fs-uuid --set a702a4a5-8c6f-40ed-95bc-a031534919c9
 echo 'Loading Linux 2.6.35-9-generic ...'
 linux /boot/vmlinuz-2.6.35-9-generic root=UUID=a702a4a5-8c6f-40ed-95bc-a031534919c9 ro single
 echo 'Loading initial ramdisk ...'
 initrd /boot/initrd.img-2.6.35-9-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='(hd1,msdos1)'
 search --no-floppy --fs-uuid --set a702a4a5-8c6f-40ed-95bc-a031534919c9
 linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
 insmod part_msdos
 insmod ext2
 set root='(hd1,msdos1)'
 search --no-floppy --fs-uuid --set a702a4a5-8c6f-40ed-95bc-a031534919c9
 linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
menuentry "Memory test (memtest86+, experimental multiboot)" {
 insmod part_msdos
 insmod ext2
 set root='(hd1,msdos1)'
 search --no-floppy --fs-uuid --set a702a4a5-8c6f-40ed-95bc-a031534919c9
 multiboot /boot/memtest86+_multiboot.bin
}
menuentry "Memory test (memtest86+, serial console 115200, experimental multiboot)" {
 insmod part_msdos
 insmod ext2
 set root='(hd1,msdos1)'
 search --no-floppy --fs-uuid --set a702a4a5-8c6f-40ed-95bc-a031534919c9
 multiboot /boot/memtest86+_multiboot.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
if [ "x${timeout}" != "x-1" ]; then
  if keystatus; then
    if keystatus --shift; then
      set timeout=-1
    else
      set timeout=0
    fi
  else
    if sleep --interruptible 3 ; then
      set timeout=0
    fi
  fi
fi
### 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 ###

Here is the copy of command sudo fdisk -l :

Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000de947

   Device Boot Start End Blocks Id System
/dev/sda1 1 91201 732572001 83 Linux

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00030042

   Device Boot Start End Blocks Id System
/dev/sdb1 * 1 3148 25286278+ 83 Linux
/dev/sdb2 3149 121601 951473692 5 Extended
/dev/sdb5 3149 3491 2755116 82 Linux swap / Solaris
/dev/sdb6 3492 10115 53207248+ 83 Linux
/dev/sdb7 10116 121601 895511263+ 83 Linux

Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0004471f

   Device Boot Start End Blocks Id System
/dev/sdc1 1 121601 976760001 83 Linux

/ is on sdb1 which has the UUID a702a4a5-8c6f-40ed-95bc-a031534919c9 and /home is on sdb6, both ext4 drives.

Also, as I ran Gparted, I noticed that sda had a "boot" flag - and it shouldn't : sda, sdb7 and sdc are ext4 partitions with datas, no other OS).

So for the moment, I am unable to run Ubuntu Maverick and google tells nothing about grub xputs... I do not know if this is a problem with my material (hard drive, DVD, computer...) or Ubuntu.

Thanks in advance for your help.

Xavier