diff --git a/3.New_server_deployment/4.APT_upgrade/0_setup.sh b/3.New_server_deployment/4.APT_upgrade/0_setup.sh
index 4f18d3815ada13b5442e76fea094e185202396c2..501706ce2157d22e9249169eb110752e683e977c 100755
--- a/3.New_server_deployment/4.APT_upgrade/0_setup.sh
+++ b/3.New_server_deployment/4.APT_upgrade/0_setup.sh
@@ -26,7 +26,7 @@ fi
 if ( ! test -z ${APT_CACHE_URL} ); then
 	if ( ! grep "${APT_CACHE_URL}" /etc/apt/sources.list >/dev/null ); then
 		echo "Updating /etc/apt/sources.list to use cache ${APT_CACHE_URL}."
-		sed -i "s@http://@http://${APT_CACHE_URL}@" /etc/apt/sources.list
+		sed -i "s@http://@${APT_CACHE_URL}@" /etc/apt/sources.list
 	fi
 fi
 
diff --git a/3.New_server_deployment/4.APT_upgrade/sources16.list b/3.New_server_deployment/4.APT_upgrade/sources16.list
index b967902f2f39724ad74c31998b6bb383b9c84818..aaa9ba29af27dea92e3fa931fcef0c9e888b6483 100644
--- a/3.New_server_deployment/4.APT_upgrade/sources16.list
+++ b/3.New_server_deployment/4.APT_upgrade/sources16.list
@@ -1,4 +1,49 @@
-deb http://archive.ubuntu.com/ubuntu/ xenial           main restricted universe multiverse
-deb http://archive.ubuntu.com/ubuntu/ xenial-updates   main restricted universe multiverse
-deb http://archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
-deb http://security.ubuntu.com/ubuntu xenial-security  main restricted universe multiverse
\ No newline at end of file
+# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
+# newer versions of the distribution.
+deb http://fr.archive.ubuntu.com/ubuntu/ xenial main restricted
+# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial main restricted
+
+## Major bug fix updates produced after the final release of the
+## distribution.
+deb http://fr.archive.ubuntu.com/ubuntu/ xenial-updates main restricted
+# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial-updates main restricted
+
+## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
+## team. Also, please note that software in universe WILL NOT receive any
+## review or updates from the Ubuntu security team.
+deb http://fr.archive.ubuntu.com/ubuntu/ xenial universe
+# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial universe
+deb http://fr.archive.ubuntu.com/ubuntu/ xenial-updates universe
+# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial-updates universe
+
+## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
+## team, and may not be under a free licence. Please satisfy yourself as to 
+## your rights to use the software. Also, please note that software in 
+## multiverse WILL NOT receive any review or updates from the Ubuntu
+## security team.
+deb http://fr.archive.ubuntu.com/ubuntu/ xenial multiverse
+# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial multiverse
+deb http://fr.archive.ubuntu.com/ubuntu/ xenial-updates multiverse
+# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial-updates multiverse
+
+## N.B. software from this repository may not have been tested as
+## extensively as that contained in the main release, although it includes
+## newer versions of some applications which may provide useful features.
+## Also, please note that software in backports WILL NOT receive any review
+## or updates from the Ubuntu security team.
+deb http://fr.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
+# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
+
+## Uncomment the following two lines to add software from Canonical's
+## 'partner' repository.
+## This software is not part of Ubuntu, but is offered by Canonical and the
+## respective vendors as a service to Ubuntu users.
+# deb http://archive.canonical.com/ubuntu xenial partner
+# deb-src http://archive.canonical.com/ubuntu xenial partner
+
+deb http://security.ubuntu.com/ubuntu xenial-security main restricted
+# deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted
+deb http://security.ubuntu.com/ubuntu xenial-security universe
+# deb-src http://security.ubuntu.com/ubuntu xenial-security universe
+deb http://security.ubuntu.com/ubuntu xenial-security multiverse
+# deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse