Thanks for taking time to helping make Ubuntu better reporting this bug.
Please note that your Dpkg log says
User postinst hook script [/sbin/update-grub] exited with value 10
dpkg : erreur de traitement de linux-image-2.6.28-16-generic (--configure) :
le sous-processus post-installation script a retourné une erreur de sortie d'état 10
Hi Fachon,
Thanks for taking time to helping make Ubuntu better reporting this bug.
Please note that your Dpkg log says
User postinst hook script [/sbin/update-grub] exited with value 10 2.6.28- 16-generic (--configure) :
dpkg : erreur de traitement de linux-image-
le sous-processus post-installation script a retourné une erreur de sortie d'état 10
which seems to be quite similar to bug #297167.
Please tell us if this can help you.
Regards