diff --git a/9.MediaVault/1.Install_MediaVault/0_setup.py b/9.MediaVault/1.Install_MediaVault/0_setup.py
index 6370c4b487bd9699a574083d4fee782e447b6c5c..f2e2c9420b7277699131dfac47cb96ab848aabb1 100755
--- a/9.MediaVault/1.Install_MediaVault/0_setup.py
+++ b/9.MediaVault/1.Install_MediaVault/0_setup.py
@@ -8,12 +8,13 @@ import os
 
 def setup(interactive=True):
     CROND_TEMPLATE = '''# https://github.com/laurent22/rsync-time-backup
-    0 22 * * * root /usr/local/sbin/rsync_tmbackup.sh /etc root@{backup_server}:/backup/{hostname}/etc
-    0 22 * * * root /usr/local/sbin/rsync_tmbackup.sh /home root@{backup_server}:/backup/{hostname}/home
-    '''
+0 22 * * * root /usr/local/sbin/rsync_tmbackup.sh /etc root@{backup_server}:/backup/{hostname}/etc /etc/backup/excluded_patterns.txt
+0 22 * * * root flock -n /etc/backup/home_backup.lock /usr/local/sbin/rsync_tmbackup.sh /home root@{backup_server}:/backup/{hostname}/home /etc/backup/excluded_patterns.txt'''
 
     cmds = [
         'cp rsync_tmbackup.sh /usr/local/sbin',
+        'mkdir -p /etc/backup',
+        'cp excluded_patterns.txt /etc/backup',
         'cp /tmp/backup.cron /etc/cron.d/',
     ]
 
diff --git a/9.MediaVault/1.Install_MediaVault/excluded_patterns.txt b/9.MediaVault/1.Install_MediaVault/excluded_patterns.txt
new file mode 100644
index 0000000000000000000000000000000000000000..63a5b6935752d3b26623d77ec70fa565b450a70e
--- /dev/null
+++ b/9.MediaVault/1.Install_MediaVault/excluded_patterns.txt
@@ -0,0 +1,7 @@
+- .zfs/
+- *.log
+- *.pyc
+- *.swp
+- *.pid
+- *chunked_*/
+- __pycache__/