diff --git a/generators/input/environments.rb b/generators/input/environments.rb
index ba005995f8bd28ea0ab20bdf1d4a061d69e939d1..90c12aca57763dfccafc32f76a74f19848fa9167 100755
--- a/generators/input/environments.rb
+++ b/generators/input/environments.rb
@@ -600,7 +600,7 @@ end
 
 environment 'squeeze-x64-xen-0.8' do
   state "stable"
-  file({:path => "/grid5000/images/squeeze-x64-xen-0.8.tgz", :md5 => "351284d43d4a3687b3198cbd1d34738f"})
+  file({:path => "/grid5000/images/squeeze-x64-xen-0.8.tgz", :md5 => "243961b600246379b1257b57c5905c68"})
   kernel "2.6.26.2"
   valid_on "bordeplage , bordereau , borderline ,  adonis , edel , genepi , chicon , chimint , chinqchint , chirloute , capricorne , sagittaire , graphene , griffon , gdx , netgdx , paradent , paramount , parapide , parapluie , helios , sol , suno, pastel , violette"
   based_on "Debian version lenny for amd64"
diff --git a/generators/input/orsay.rb b/generators/input/orsay.rb
index 667e6632127fcdb9e108ddd2c2bdfbeb98c6e2dd..0e952a1f19e2c2632f0b0c48ab70742f29534fe5 100755
--- a/generators/input/orsay.rb
+++ b/generators/input/orsay.rb
@@ -45,7 +45,8 @@ site :orsay do |site_uid|
         operating_system({
           :name => nil,
           :release => nil,
-          :version => nil
+          :version => nil,
+          :kernel   => "2.6.26"
         })
         storage_devices [
           {:interface => 'SATA', :size => 80.GB, :driver => nil}