using Lubuntu and Ubuntu classic(Gnome environment) alternatively (gdm keeped)_revert from Lubuntu to Ubuntu-Gnome-classic is not simply_obliged to suppress all packages relating to Lubuntu via synaptic packages manager_no found a simple mean to make sigle & returns beetween the 2 sessions .....
ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-35-generic 2.6.32-35.78
ProcVersionSignature: Ubuntu 2.6.32-34.77-generic 2.6.32.44+drm33.19
Uname: Linux 2.6.32-34-generic i686
Architecture: i386
Date: Tue Nov 1 20:59:26 2011
ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
SourcePackage: grub
Title: package linux-image-2.6.32-35-generic 2.6.32-35.78 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
The error in your logfile is:
> Could not find /boot/grub/menu.lst file. Would you like /boot/grub/menu.lst generated for you? (y/N) N
> Not creating /boot/grub/menu.lst as you wish
> User postinst hook script [/sbin/update-grub] exited with value 1
This is not a bug in Ubuntu, but a local configuration error. You have installed a version of Ubuntu that includes grub2 as the bootloader, and removed it from your system in favor of grub1, which has not been configured. You should fix this by running:
sudo apt-get install grub-pc
The rest of your message appears to describe issues completely unrelated to the upgrade failure you were reporting. I would recommend you consult the Ubuntu forums or a related support forum for further assistance.