diff --git a/Documentation/For_ops/INSTALL/INSTALL_DEV_Ubuntu_16.04.md b/Documentation/For_ops/INSTALL/INSTALL_DEV_Ubuntu_16.04.md
index d60f4f124e84548bea932276ff031eeeb4c0212c..0048f47009fd6ef24b5f367ec6073ddc00e2300c 100644
--- a/Documentation/For_ops/INSTALL/INSTALL_DEV_Ubuntu_16.04.md
+++ b/Documentation/For_ops/INSTALL/INSTALL_DEV_Ubuntu_16.04.md
@@ -17,7 +17,10 @@ apt-get install \
     libapache2-mod-php \
     postgresql \
     php-pgsql \
-    php7.0-sqlite3
+    php7.0-sqlite3 \
+    php7.0-xml \
+    php7.0-mbstring
+
 ```
 
 ## Prerequisites: PHP > timezone + max_upload
@@ -143,7 +146,7 @@ As any user, do:
 
 as user `root` postgresql, do :
 
-```
+```postgresql
 CREATE DATABASE debug_kit WITH TEMPLATE = template0 ENCODING = 'UTF8' LC_COLLATE = 'fr_FR.UTF-8' LC_CTYPE = 'fr_FR.UTF-8';
 ALTER DATABASE debug_kit OWNER TO comptoir;
 ```
@@ -182,6 +185,13 @@ sudo groupadd comptoir
 sudo usermod -aG comptoir superdupont
 sudo chown -R www-data:comptoir /home/comptoir/Comptoir-srv/webroot/img/files
 ```
+Test it:
+
+```shell
+    grep -E "^comptoir:" /etc/group
+```
+Comptoir's group must contain 2 users : comptoir, superdupont.
+
 
 ## POSTGRESQL sanitize content
 
@@ -198,13 +208,6 @@ cd /home/comptoir/Comptoir-srv/
 /usr/local/bin/composer install
 ```
 
-## Load Debug kit for Comptoir **SRV**
-
-As user `superdupont`, do:
-
-```shell
-bin/cake plugin load DebugKit
-```
 
 ## APP.PHP Configure logs for CRUD actions
 
@@ -264,13 +267,27 @@ Replace `my-password` with suitable value.
 Adjust Postgres credentials in `config/app.php`, search for 'Datasources'
 and 'default'. Now adjust:
 
-* host
-* port
-* username
-* password
-* database
+```php
+'default' => [
+            'className' => 'Cake\Database\Connection',
+            'driver' => 'Cake\Database\Driver\Postgres',
+            'persistent' => false,
+            'host' => 'localhost',
+            //'port' => 'non_standard_port_number',
+            'username' => 'comptoir',
+            'password' => 'comptoir',
+            'database' => 'comptoir',
+            'encoding' => 'utf8',
+            'timezone' => 'Europe/Paris',
+            'cacheMetadata' => true,
+            'log' => false,
+```
+/!\ You should comment the 'test' section of Datasources.
+
+
+## APP.PHP Configure debug-kit database credentials
 
-* Datasource for debug-kit
+After the 'test' commented, add datasource for debug-kit
 
 ```php
     'debug_kit' => [
@@ -281,8 +298,8 @@ and 'default'. Now adjust:
                 'username' => 'comptoir',
                 'password' => 'comptoir',
                 'database' => 'debug_kit',
-                'encoding' => 'Europe/Paris',
-                'timezone' => 'UTC',
+                'encoding' => 'utf8',
+                'timezone' => 'Europe/Paris',
                 'cacheMetadata' => true,
                 'quoteIdentifiers' => false,
             ],
@@ -293,18 +310,29 @@ and 'default'. Now adjust:
 
 Copy default parameters of `comptoir.default.php` into `comptoir.php`
 ```shell
-cp config/comptoir.default.php config/comptoir.default.php
+cd /home/comptoir/Comptoir-srv
+cp config/comptoir.default.php config/comptoir.php
 ```
 
 ### Categories.PickOfTheMonth
 
-The array `Categories => PickOfTheMonth` contain the four ids of softwares you want see in the section `Pick of the month` on the home page.
+In `comptoir.php`, the array `Categories => PickOfTheMonth` contain the four ids of softwares you want see in the section `Pick of the month` on the home page.
 
 Default ids [   27, // Authentik
                 49, // Maarch Courrier
                 9,  // Asqatasun
                 23  // OpenADS ]
                 
+                
+## Load Debug kit for Comptoir **SRV**
+
+As user `superdupont`, do:
+
+```shell
+bin/cake plugin load DebugKit
+```
+
+                
 ## Set UNIX permissions
 
 As user `root` do:
@@ -325,10 +353,10 @@ done
 
 ## APACHE Vhost preparation
 
-As `root`, edit `/etc/hosts` and add `comptoir-srv.local` next to the "localhost" entry:
+As `root`, do:
 
 ```
-127.0.0.1	localhost my-computer-name comptoir-srv.local 
+echo "127.0.0.1	comptoir-srv.local" >> /etc/hosts
 ```
 
 ## APACHE Vhost creation "comptoir-srv"