Probleme boot "swap waiting for uuid"

Bonjour,

je suis sous ubuntu 9.10 en dual boot avec windows 7 et j'ai un gros souci au niveau du boot d' ubuntu.
Lors du boot, j'ai un message qui me dit swap waiting for uuid=........ et qui bloque la dessus, impossible de demarrer et j'ai mon travil dessus.
Parfois cela demarre mais c'est tres rare et j'ai egalement un autre message parfois au lieu du precedent disant nmbd is running et cela bloque...

je vous copie mes fichiers /boot/grub/menu.lst,
/etc/fstab et les resultats des commandes fdisk -l et ls -l /dev/disk/by-uid

# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default 0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 10

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
#hiddenmenu

# Pretty colours
#color cyan/blue white/blue

#A splash image for the menu
splashimage=(hd0,2)/boot/grub/splashimages/68304-virus.xpm.gz

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
## password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
## kopt_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=9aa81396-6466-421b-b9e7-e8356db319ab ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,2)

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash vga=769

## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
## indomU=true
## indomU=false
# indomU=detect

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title Ubuntu 9.10, kernel 2.6.31-19-generic
root (hd0,2)
kernel /boot/vmlinuz-2.6.31-19-generic root=UUID=9aa81396-6466-421b-b9e7-e8356db319ab ro quiet splash vga=769
initrd /boot/initrd.img-2.6.31-19-generic
quiet

title Ubuntu 9.10, kernel 2.6.31-19-generic (recovery mode)
root (hd0,2)
kernel /boot/vmlinuz-2.6.31-19-generic root=UUID=9aa81396-6466-421b-b9e7-e8356db319ab ro single
initrd /boot/initrd.img-2.6.31-19-generic

title Ubuntu 9.10, kernel 2.6.31-15-generic
root (hd0,2)
kernel /boot/vmlinuz-2.6.31-15-generic root=UUID=9aa81396-6466-421b-b9e7-e8356db319ab ro quiet splash vga=769
initrd /boot/initrd.img-2.6.31-15-generic
quiet

title Ubuntu 9.10, kernel 2.6.31-15-generic (recovery mode)
root (hd0,2)
kernel /boot/vmlinuz-2.6.31-15-generic root=UUID=9aa81396-6466-421b-b9e7-e8356db319ab ro single
initrd /boot/initrd.img-2.6.31-15-generic

title Ubuntu 9.10, memtest86+
root (hd0,2)
kernel /boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sda1
title Windows Vista
root (hd0,0)
savedefault
makeactive
chainloader +1


fichier /etc/fstab
----------------------
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sda3
UUID=9aa81396-6466-421b-b9e7-e8356db319ab / ext3 relatime,errors=remount-ro 0 1
# /dev/sda2
UUID=09a92ba9-df53-42e9-acbb-ec0b9bb3f314 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/dev/sda2 /home/seb/donnes ntfs-3g rw,user,exec,auto,gid=100,uid=1000,nls=utf8,umask=002 0 0

ls -l /dev/disk/by-uid
-------------------------

total 0
lrwxrwxrwx 1 root root 10 2010-02-26 23:00 02145763145758AD -> ../../sda2
lrwxrwxrwx 1 root root 10 2010-02-26 23:00 685E9CE95E9CB0F4 -> ../../sda1
lrwxrwxrwx 1 root root 10 2010-02-26 23:00 9aa81396-6466-421b-b9e7-e8356db319ab -> ../../sda3

fdisk -l
-------------------


Disque /dev/sda: 250.1 Go, 250059350016 octets
255 têtes, 63 secteurs/piste, 30401 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Identifiant de disque : 0x30000000

Périphérique Amorce Début Fin Blocs Id Système
/dev/sda1 * 1 3824 30716248+ 7 HPFS/NTFS
/dev/sda2 3825 26771 184321024 7 HPFS/NTFS
/dev/sda3 26772 29958 25599577+ 83 Linux


Merci.