diff --git a/registry/scripts/upgrade_all.sh b/registry/scripts/upgrade_all.sh
new file mode 100755
index 0000000000000000000000000000000000000000..db5cec798d4df65812ca90207aa37c12432a672c
--- /dev/null
+++ b/registry/scripts/upgrade_all.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# Copyright (C) 2018  Tetras Libre <Contact@Tetras-Libre.fr>
+# Author: Beniamine, David <David.Beniamine@Tetras-Libre.fr>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+getip(){
+    awk '/^lease/{IP=$2} /hardware ethernet/{gsub(";","",$3);if($3 == "'$1'"){print IP}}' \
+        < /var/lib/dhcp/dhcpd.leases
+}
+
+runcmd(){
+    ssh root@$1 $2
+}
+
+conf_dir="/etc/registry"
+conf_file="$conf_dir/hosts"
+broadcast=$(ip a | awk '/inet.*eth1/ {print $4}' | cut -d / -f 1)
+wait_time=300
+wait_step=5
+
+if [ -z "$1" ]
+then
+    cmd="/opt/primtux-eole/upgrade-session.sh"
+else
+    cmd="$@"
+fi
+
+while read date mac name
+do
+    # Boot machine
+    wakeonlan -i $broadcast "$mac"
+    MACS+=" $mac"
+done < $conf_file
+
+# Wait for boot
+echo ""
+while [ $wait_time > 0 ]
+do
+    echo -ne "Waiting for boot, remaining $wait_time seconds\r"
+    sleep $wait_step
+    wait_time=$(($wait_time - $wait_step))
+done
+
+for mac in $MACS
+do
+    ip=$(getip $mac)
+    run_cmd $ip $cmd &
+done