GRUB: Out of disk

fdisk -l 

grub-install

cat /boot/grub/grub.cfg

root@alix:~# fdisk -l

Disk /dev/sda: 16.0 GB, 16039018496 bytes
255 heads, 63 sectors/track, 1949 cylinders, total 31326208 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0002a60b

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048    31324159    15661056   83  Linux

root@alix:~# cat /boot/grub/grub.cfg 
#
# 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 $prefix/grubenv ]; then
  load_env
fi
set default="0"
if [ "${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 load_video {
  insmod vbe
  insmod vga
  insmod video_bochs
  insmod video_cirrus
}

serial --speed=38400
terminal_input serial
terminal_output serial
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Debian GNU/Linux, with Linux 3.3.2-alix' --class debian --class gnu-linux --class gnu --class os {
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set=root 9b5d2897-312b-4a83-ae7d-3120d4656ef8
	echo	'Loading Linux 3.3.2-alix ...'
	linux	/boot/vmlinuz-3.3.2-alix root=/dev/sda1 ro console=ttyS0,38400n8 
}
menuentry 'Debian GNU/Linux, with Linux 3.3.2-alix (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set=root 9b5d2897-312b-4a83-ae7d-3120d4656ef8
	echo	'Loading Linux 3.3.2-alix ...'
	linux	/boot/vmlinuz-3.3.2-alix root=/dev/sda1 ro single console=ttyS0,38400n8
}
menuentry 'Debian GNU/Linux, with Linux 3.3-alix' --class debian --class gnu-linux --class gnu --class os {
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set=root 9b5d2897-312b-4a83-ae7d-3120d4656ef8
	echo	'Loading Linux 3.3-alix ...'
	linux	/boot/vmlinuz-3.3-alix root=/dev/sda1 ro console=ttyS0,38400n8 
}
menuentry 'Debian GNU/Linux, with Linux 3.3-alix (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set=root 9b5d2897-312b-4a83-ae7d-3120d4656ef8
	echo	'Loading Linux 3.3-alix ...'
	linux	/boot/vmlinuz-3.3-alix root=/dev/sda1 ro single console=ttyS0,38400n8
}
### END /etc/grub.d/10_linux ###

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

### BEGIN /etc/grub.d/30_os-prober ###
### 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 ###

set root='(hd0,msdos1)'

set root='(hd0,1)'